Dermatology

PORTLAND, ORE. – When patients present to Brandon L. Adler, MD, with dermatitis on the eyelid, face, or neck, he routinely asks them if they apply essential oils on their skin, or if they have an essential oil diffuser or nebulizer in their home.

“The answer is frequently ‘yes,’ ” Dr. Adler, clinical assistant professor of dermatology at the University of Southern California, Los Angeles, said at the annual meeting of the Pacific Dermatologic Association. “Essential oils are widely used throughout the wellness industry. They are contained in personal care products, beauty products, natural cleaning products, and they’re being diffused by our patients into the air. More than 75 essential oils are reported to cause allergic contact dermatitis.”

yangna/iStock/Getty Images

Natural chemical components contained in essential oils can cause skin reactions, especially linalool and limonene. “Linalool is most classically associated with lavender, while limonene is associated with citrus, but they’re found in many different plants,” said Dr. Adler, who directs USC’s contact dermatitis clinic. “On their own, linalool and limonene are not particularly allergenic; they’re not a big deal in the patch test clinic. The problem comes when we add air to the mix, because they oxidize to hydroperoxides of linalool and limonene. These are quite potent allergens.”

According to the most recent North American Contact Dermatitis Group data, 8.9% of patients undergoing patch testing tested positive to linalool hydroperoxides and 2.6% were positive to limonene hydroperoxides.

Dr. Adler discussed the case of a female massage therapist who presented with refractory hand dermatitis and was on methotrexate and dupilumab at the time of consultation but was still symptomatic. She patch-tested positive to limonene and linalool hydroperoxides as well as multiple essential oils that she had been using with her clients, ranging from sacred frankincense oil to basil oil, and she was advised to massage using only coconut or vegetable oils.

Essential oil allergy may also be related to cannabis allergy. According to Dr. Adler, allergic contact dermatitis to cannabis has been rarely reported, but in an analysis of 103 commercial topical cannabinoid preparations that he published with Vincent DeLeo, MD, also with USC, 84% contained a NACDG allergen, frequently essential oils.

More recently, Dr. Adler and colleagues reported the case of a 40-year-old woman who was referred for patch testing for nummular dermatitis that wasn’t responding to treatment. The patient was found to be using topical cannabis and also grew cannabis at home. “She asked to be patch-tested to her homegrown cannabis and had a strong positive patch test to the cannabis, linalool and limonene hydroperoxides, and other essential oils,” Dr. Adler recalled. “We sent her cannabis sample for analysis at a commercial lab and found that it contained limonene and other allergenic terpene chemicals.

“We’re just starting to unravel what this means in terms of our patients and how to manage them, but many are using topical cannabis and topical CBD. I suspect this is a lot less rare than we realize.”

Another recent case from Europe reported allergic contact dermatitis to Cannabis sativa (hemp) seed oil following topical application, with positive patch testing.

Dr. Adler disclosed that he has received research grants from the American Contact Dermatitis Society. He is also an investigator for AbbVie and a consultant for the Skin Research Institute.

PORTLAND, ORE. – When patients present to Brandon L. Adler, MD, with dermatitis on the eyelid, face, or neck, he routinely asks them if they apply essential oils on their skin, or if they have an essential oil diffuser or nebulizer in their home.

“The answer is frequently ‘yes,’ ” Dr. Adler, clinical assistant professor of dermatology at the University of Southern California, Los Angeles, said at the annual meeting of the Pacific Dermatologic Association. “Essential oils are widely used throughout the wellness industry. They are contained in personal care products, beauty products, natural cleaning products, and they’re being diffused by our patients into the air. More than 75 essential oils are reported to cause allergic contact dermatitis.”

yangna/iStock/Getty Images

Natural chemical components contained in essential oils can cause skin reactions, especially linalool and limonene. “Linalool is most classically associated with lavender, while limonene is associated with citrus, but they’re found in many different plants,” said Dr. Adler, who directs USC’s contact dermatitis clinic. “On their own, linalool and limonene are not particularly allergenic; they’re not a big deal in the patch test clinic. The problem comes when we add air to the mix, because they oxidize to hydroperoxides of linalool and limonene. These are quite potent allergens.”

According to the most recent North American Contact Dermatitis Group data, 8.9% of patients undergoing patch testing tested positive to linalool hydroperoxides and 2.6% were positive to limonene hydroperoxides.

Dr. Adler discussed the case of a female massage therapist who presented with refractory hand dermatitis and was on methotrexate and dupilumab at the time of consultation but was still symptomatic. She patch-tested positive to limonene and linalool hydroperoxides as well as multiple essential oils that she had been using with her clients, ranging from sacred frankincense oil to basil oil, and she was advised to massage using only coconut or vegetable oils.

Essential oil allergy may also be related to cannabis allergy. According to Dr. Adler, allergic contact dermatitis to cannabis has been rarely reported, but in an analysis of 103 commercial topical cannabinoid preparations that he published with Vincent DeLeo, MD, also with USC, 84% contained a NACDG allergen, frequently essential oils.

More recently, Dr. Adler and colleagues reported the case of a 40-year-old woman who was referred for patch testing for nummular dermatitis that wasn’t responding to treatment. The patient was found to be using topical cannabis and also grew cannabis at home. “She asked to be patch-tested to her homegrown cannabis and had a strong positive patch test to the cannabis, linalool and limonene hydroperoxides, and other essential oils,” Dr. Adler recalled. “We sent her cannabis sample for analysis at a commercial lab and found that it contained limonene and other allergenic terpene chemicals.

“We’re just starting to unravel what this means in terms of our patients and how to manage them, but many are using topical cannabis and topical CBD. I suspect this is a lot less rare than we realize.”

Another recent case from Europe reported allergic contact dermatitis to Cannabis sativa (hemp) seed oil following topical application, with positive patch testing.

Dr. Adler disclosed that he has received research grants from the American Contact Dermatitis Society. He is also an investigator for AbbVie and a consultant for the Skin Research Institute.

PORTLAND, ORE. – When patients present to Brandon L. Adler, MD, with dermatitis on the eyelid, face, or neck, he routinely asks them if they apply essential oils on their skin, or if they have an essential oil diffuser or nebulizer in their home.

“The answer is frequently ‘yes,’ ” Dr. Adler, clinical assistant professor of dermatology at the University of Southern California, Los Angeles, said at the annual meeting of the Pacific Dermatologic Association. “Essential oils are widely used throughout the wellness industry. They are contained in personal care products, beauty products, natural cleaning products, and they’re being diffused by our patients into the air. More than 75 essential oils are reported to cause allergic contact dermatitis.”

yangna/iStock/Getty Images

Natural chemical components contained in essential oils can cause skin reactions, especially linalool and limonene. “Linalool is most classically associated with lavender, while limonene is associated with citrus, but they’re found in many different plants,” said Dr. Adler, who directs USC’s contact dermatitis clinic. “On their own, linalool and limonene are not particularly allergenic; they’re not a big deal in the patch test clinic. The problem comes when we add air to the mix, because they oxidize to hydroperoxides of linalool and limonene. These are quite potent allergens.”

According to the most recent North American Contact Dermatitis Group data, 8.9% of patients undergoing patch testing tested positive to linalool hydroperoxides and 2.6% were positive to limonene hydroperoxides.

Dr. Adler discussed the case of a female massage therapist who presented with refractory hand dermatitis and was on methotrexate and dupilumab at the time of consultation but was still symptomatic. She patch-tested positive to limonene and linalool hydroperoxides as well as multiple essential oils that she had been using with her clients, ranging from sacred frankincense oil to basil oil, and she was advised to massage using only coconut or vegetable oils.

Essential oil allergy may also be related to cannabis allergy. According to Dr. Adler, allergic contact dermatitis to cannabis has been rarely reported, but in an analysis of 103 commercial topical cannabinoid preparations that he published with Vincent DeLeo, MD, also with USC, 84% contained a NACDG allergen, frequently essential oils.

More recently, Dr. Adler and colleagues reported the case of a 40-year-old woman who was referred for patch testing for nummular dermatitis that wasn’t responding to treatment. The patient was found to be using topical cannabis and also grew cannabis at home. “She asked to be patch-tested to her homegrown cannabis and had a strong positive patch test to the cannabis, linalool and limonene hydroperoxides, and other essential oils,” Dr. Adler recalled. “We sent her cannabis sample for analysis at a commercial lab and found that it contained limonene and other allergenic terpene chemicals.

“We’re just starting to unravel what this means in terms of our patients and how to manage them, but many are using topical cannabis and topical CBD. I suspect this is a lot less rare than we realize.”

Another recent case from Europe reported allergic contact dermatitis to Cannabis sativa (hemp) seed oil following topical application, with positive patch testing.

Dr. Adler disclosed that he has received research grants from the American Contact Dermatitis Society. He is also an investigator for AbbVie and a consultant for the Skin Research Institute.

PORTLAND, ORE. – For those who hesitate to prescribe Janus kinase inhibitors for patients with moderate to severe atopic dermatitis (AD) because of the boxed warnings on currently approved agents, it’s time to reconsider, according to Andrew Blauvelt, MD, MBA.

“In dermatology, you need to know about JAK inhibitors, and you need to know how to use them,” Dr. Blauvelt, president of Oregon Medical Research Center, Portland, said at the annual meeting of the Pacific Dermatologic Association. “Making the choice, ‘I’m not going to use those drugs because of safety concerns,’ may be okay in 2022, but we are going to be getting a lot more indications for these drugs. So instead of avoiding JAK inhibitors, I would say try to learn [about] them, understand them, and get your messaging out on safety.”

It’s difficult to imagine a clinician-researcher who has more experience with the use of biologics and JAK inhibitors in AD than Dr. Blauvelt, who has been the international investigator on several important trials of treatments that include dupilumab, tralokinumab, abrocitinib, and upadacitinib for AD such as CHRONOS, ECZTEND, JADE REGIMEN, and HEADS UP. At the meeting, he discussed his clinical approach to selecting systemic agents for AD and shared prescribing tips. He began by noting that the approval of dupilumab for moderate to severe AD in 2017 ushered in a new era of treating the disease systemically.

“When it was approved, experts went right to dupilumab if they could, and avoided the use of cyclosporine or methotrexate,” said Dr. Blauvelt, who is also an elected member of the American Society for Clinical Investigation and the International Eczema Council. “I still think that dupilumab is a great agent to start with. We’ve had a bit of difficulty improving upon it.”

Following dupilumab’s approval, three other systemic options became available for patients with moderate to severe AD: the human IgG4 monoclonal antibody tralokinumab that binds to interleukin-13, which is administered subcutaneously; and, more recently, the oral JAK inhibitors abrocitinib and upadacitinib, approved in January for moderate to severe AD.

“I’m a big fan of JAK inhibitors because I think they offer things that biologic and topical therapies can’t offer,” Dr. Blauvelt said. “Patients like the pills versus shots. They also like the speed; JAK inhibitors work faster than dupilumab and tralokinumab. So, if you have a patient with bad AD who wants to get better quickly, that would be a reason to choose a JAK inhibitor over a biologic if you can.”

When Dr. Blauvelt has asked AD clinical trial participants if they’d rather be treated with a biologic agent or with a JAK inhibitor, about half choose one over the other.

“Patients who shy away from the safety issues would choose the biologic trial while the ones who wanted the fast relief would choose the JAK trial,” he said. “But if you present both options and the patients prefer a pill, I think the JAK inhibitors do better with a rapid control of inflammation as well as pruritus – the latter within 2 days of taking the pills.”

When counseling patients initiating a JAK inhibitor, Dr. Blauvelt mentioned three advantages, compared with biologics: the pill formulation, the rapidity of response in pruritus control, and better efficacy. “The downside is the safety,” he said. “Safety is the elephant in the room for the JAK inhibitors.”

The risks listed in the boxed warning in the labeling for JAK inhibitors include: an increased risk of serious bacterial, fungal, and opportunistic infections such as TB; a higher rate of all-cause mortality, including cardiovascular death; a higher rate of MACE (major adverse cardiovascular events, defined as cardiovascular death, MI, and stroke); the potential for malignancy, including lymphoma; and the potential for thrombosis, including an increased incidence of pulmonary embolism (PE).

“Risk of thrombosis seems to be a class effect for all JAK inhibitors,” Dr. Blauvelt said. “As far as I know, it’s idiosyncratic. For nearly all the DVT [deep vein thrombosis] cases that have been reported, patients had baseline risk factors for DVT and PE, which are obesity, smoking, and use of oral contraceptives.”

Dr. Blauvelt pointed out that the boxed warning related to mortality, malignancies, and MACE stemmed from a long-term trial of the JAK inhibitor tofacitinib in RA patients. “Those patients had to be at least 50 years old, 75% of them were on concomitant methotrexate and/or prednisone, and they had to have at least one cardiac risk factor to get into the trial,” he said.

“I’m not saying those things can’t happen in dermatology patients, but if you look at the safety data of JAK inhibitors in the AD studies and in the alopecia areata studies, we are seeing a few cases of these things here and there, but not major signals,” he said. To date, “they look safer in dermatologic diseases compared to tofacitinib in RA data in older populations.”

He emphasized the importance of discussing each of the risks in the boxed warning with patients who are candidates for JAK inhibitor therapy.

Dr. Blauvelt likened the lab monitoring required for JAK inhibitors to that required for methotrexate. This means ordering at baseline, a CBC with differential, a chem-20, a lipid panel, and a QuantiFERON-TB Gold test. The JAK inhibitor labels do not include information on the frequency of monitoring, “but I have a distinct opinion on this because of my blood test monitoring experience in the trials for many years,” he said.

“I think it’s good to do follow-up testing at 1 month, then every 3 months in the first year. In my experience, the people who drop blood cell counts or increase their lipids tend to do it in the first year.”

After 1 year of treatment, he continued, follow-up testing once every 6 months is reasonable. “If CPK [creatine phosphokinase] goes up, I don’t worry about it; it’s not clinically relevant. There is no recommendation for CPK monitoring, so if you’re getting that on your chem-20, I’d say don’t worry about it.”

Dr. Blauvelt reported that he is an investigator and a scientific adviser for several pharmaceutical companies developing treatments for AD, including companies that are evaluating or marketing JAK inhibitors for AD, including AbbVie, Incyte, and Pfizer, as well as dupilumab’s joint developers Sanofi and Regeneron.

PORTLAND, ORE. – For those who hesitate to prescribe Janus kinase inhibitors for patients with moderate to severe atopic dermatitis (AD) because of the boxed warnings on currently approved agents, it’s time to reconsider, according to Andrew Blauvelt, MD, MBA.

“In dermatology, you need to know about JAK inhibitors, and you need to know how to use them,” Dr. Blauvelt, president of Oregon Medical Research Center, Portland, said at the annual meeting of the Pacific Dermatologic Association. “Making the choice, ‘I’m not going to use those drugs because of safety concerns,’ may be okay in 2022, but we are going to be getting a lot more indications for these drugs. So instead of avoiding JAK inhibitors, I would say try to learn [about] them, understand them, and get your messaging out on safety.”

It’s difficult to imagine a clinician-researcher who has more experience with the use of biologics and JAK inhibitors in AD than Dr. Blauvelt, who has been the international investigator on several important trials of treatments that include dupilumab, tralokinumab, abrocitinib, and upadacitinib for AD such as CHRONOS, ECZTEND, JADE REGIMEN, and HEADS UP. At the meeting, he discussed his clinical approach to selecting systemic agents for AD and shared prescribing tips. He began by noting that the approval of dupilumab for moderate to severe AD in 2017 ushered in a new era of treating the disease systemically.

“When it was approved, experts went right to dupilumab if they could, and avoided the use of cyclosporine or methotrexate,” said Dr. Blauvelt, who is also an elected member of the American Society for Clinical Investigation and the International Eczema Council. “I still think that dupilumab is a great agent to start with. We’ve had a bit of difficulty improving upon it.”

Following dupilumab’s approval, three other systemic options became available for patients with moderate to severe AD: the human IgG4 monoclonal antibody tralokinumab that binds to interleukin-13, which is administered subcutaneously; and, more recently, the oral JAK inhibitors abrocitinib and upadacitinib, approved in January for moderate to severe AD.

“I’m a big fan of JAK inhibitors because I think they offer things that biologic and topical therapies can’t offer,” Dr. Blauvelt said. “Patients like the pills versus shots. They also like the speed; JAK inhibitors work faster than dupilumab and tralokinumab. So, if you have a patient with bad AD who wants to get better quickly, that would be a reason to choose a JAK inhibitor over a biologic if you can.”

When Dr. Blauvelt has asked AD clinical trial participants if they’d rather be treated with a biologic agent or with a JAK inhibitor, about half choose one over the other.

“Patients who shy away from the safety issues would choose the biologic trial while the ones who wanted the fast relief would choose the JAK trial,” he said. “But if you present both options and the patients prefer a pill, I think the JAK inhibitors do better with a rapid control of inflammation as well as pruritus – the latter within 2 days of taking the pills.”

When counseling patients initiating a JAK inhibitor, Dr. Blauvelt mentioned three advantages, compared with biologics: the pill formulation, the rapidity of response in pruritus control, and better efficacy. “The downside is the safety,” he said. “Safety is the elephant in the room for the JAK inhibitors.”

The risks listed in the boxed warning in the labeling for JAK inhibitors include: an increased risk of serious bacterial, fungal, and opportunistic infections such as TB; a higher rate of all-cause mortality, including cardiovascular death; a higher rate of MACE (major adverse cardiovascular events, defined as cardiovascular death, MI, and stroke); the potential for malignancy, including lymphoma; and the potential for thrombosis, including an increased incidence of pulmonary embolism (PE).

“Risk of thrombosis seems to be a class effect for all JAK inhibitors,” Dr. Blauvelt said. “As far as I know, it’s idiosyncratic. For nearly all the DVT [deep vein thrombosis] cases that have been reported, patients had baseline risk factors for DVT and PE, which are obesity, smoking, and use of oral contraceptives.”

Dr. Blauvelt pointed out that the boxed warning related to mortality, malignancies, and MACE stemmed from a long-term trial of the JAK inhibitor tofacitinib in RA patients. “Those patients had to be at least 50 years old, 75% of them were on concomitant methotrexate and/or prednisone, and they had to have at least one cardiac risk factor to get into the trial,” he said.

“I’m not saying those things can’t happen in dermatology patients, but if you look at the safety data of JAK inhibitors in the AD studies and in the alopecia areata studies, we are seeing a few cases of these things here and there, but not major signals,” he said. To date, “they look safer in dermatologic diseases compared to tofacitinib in RA data in older populations.”

He emphasized the importance of discussing each of the risks in the boxed warning with patients who are candidates for JAK inhibitor therapy.

Dr. Blauvelt likened the lab monitoring required for JAK inhibitors to that required for methotrexate. This means ordering at baseline, a CBC with differential, a chem-20, a lipid panel, and a QuantiFERON-TB Gold test. The JAK inhibitor labels do not include information on the frequency of monitoring, “but I have a distinct opinion on this because of my blood test monitoring experience in the trials for many years,” he said.

“I think it’s good to do follow-up testing at 1 month, then every 3 months in the first year. In my experience, the people who drop blood cell counts or increase their lipids tend to do it in the first year.”

After 1 year of treatment, he continued, follow-up testing once every 6 months is reasonable. “If CPK [creatine phosphokinase] goes up, I don’t worry about it; it’s not clinically relevant. There is no recommendation for CPK monitoring, so if you’re getting that on your chem-20, I’d say don’t worry about it.”

Dr. Blauvelt reported that he is an investigator and a scientific adviser for several pharmaceutical companies developing treatments for AD, including companies that are evaluating or marketing JAK inhibitors for AD, including AbbVie, Incyte, and Pfizer, as well as dupilumab’s joint developers Sanofi and Regeneron.

PORTLAND, ORE. – For those who hesitate to prescribe Janus kinase inhibitors for patients with moderate to severe atopic dermatitis (AD) because of the boxed warnings on currently approved agents, it’s time to reconsider, according to Andrew Blauvelt, MD, MBA.

“In dermatology, you need to know about JAK inhibitors, and you need to know how to use them,” Dr. Blauvelt, president of Oregon Medical Research Center, Portland, said at the annual meeting of the Pacific Dermatologic Association. “Making the choice, ‘I’m not going to use those drugs because of safety concerns,’ may be okay in 2022, but we are going to be getting a lot more indications for these drugs. So instead of avoiding JAK inhibitors, I would say try to learn [about] them, understand them, and get your messaging out on safety.”

It’s difficult to imagine a clinician-researcher who has more experience with the use of biologics and JAK inhibitors in AD than Dr. Blauvelt, who has been the international investigator on several important trials of treatments that include dupilumab, tralokinumab, abrocitinib, and upadacitinib for AD such as CHRONOS, ECZTEND, JADE REGIMEN, and HEADS UP. At the meeting, he discussed his clinical approach to selecting systemic agents for AD and shared prescribing tips. He began by noting that the approval of dupilumab for moderate to severe AD in 2017 ushered in a new era of treating the disease systemically.

“When it was approved, experts went right to dupilumab if they could, and avoided the use of cyclosporine or methotrexate,” said Dr. Blauvelt, who is also an elected member of the American Society for Clinical Investigation and the International Eczema Council. “I still think that dupilumab is a great agent to start with. We’ve had a bit of difficulty improving upon it.”

Following dupilumab’s approval, three other systemic options became available for patients with moderate to severe AD: the human IgG4 monoclonal antibody tralokinumab that binds to interleukin-13, which is administered subcutaneously; and, more recently, the oral JAK inhibitors abrocitinib and upadacitinib, approved in January for moderate to severe AD.

“I’m a big fan of JAK inhibitors because I think they offer things that biologic and topical therapies can’t offer,” Dr. Blauvelt said. “Patients like the pills versus shots. They also like the speed; JAK inhibitors work faster than dupilumab and tralokinumab. So, if you have a patient with bad AD who wants to get better quickly, that would be a reason to choose a JAK inhibitor over a biologic if you can.”

When Dr. Blauvelt has asked AD clinical trial participants if they’d rather be treated with a biologic agent or with a JAK inhibitor, about half choose one over the other.

“Patients who shy away from the safety issues would choose the biologic trial while the ones who wanted the fast relief would choose the JAK trial,” he said. “But if you present both options and the patients prefer a pill, I think the JAK inhibitors do better with a rapid control of inflammation as well as pruritus – the latter within 2 days of taking the pills.”

When counseling patients initiating a JAK inhibitor, Dr. Blauvelt mentioned three advantages, compared with biologics: the pill formulation, the rapidity of response in pruritus control, and better efficacy. “The downside is the safety,” he said. “Safety is the elephant in the room for the JAK inhibitors.”

The risks listed in the boxed warning in the labeling for JAK inhibitors include: an increased risk of serious bacterial, fungal, and opportunistic infections such as TB; a higher rate of all-cause mortality, including cardiovascular death; a higher rate of MACE (major adverse cardiovascular events, defined as cardiovascular death, MI, and stroke); the potential for malignancy, including lymphoma; and the potential for thrombosis, including an increased incidence of pulmonary embolism (PE).

“Risk of thrombosis seems to be a class effect for all JAK inhibitors,” Dr. Blauvelt said. “As far as I know, it’s idiosyncratic. For nearly all the DVT [deep vein thrombosis] cases that have been reported, patients had baseline risk factors for DVT and PE, which are obesity, smoking, and use of oral contraceptives.”

Dr. Blauvelt pointed out that the boxed warning related to mortality, malignancies, and MACE stemmed from a long-term trial of the JAK inhibitor tofacitinib in RA patients. “Those patients had to be at least 50 years old, 75% of them were on concomitant methotrexate and/or prednisone, and they had to have at least one cardiac risk factor to get into the trial,” he said.

“I’m not saying those things can’t happen in dermatology patients, but if you look at the safety data of JAK inhibitors in the AD studies and in the alopecia areata studies, we are seeing a few cases of these things here and there, but not major signals,” he said. To date, “they look safer in dermatologic diseases compared to tofacitinib in RA data in older populations.”

He emphasized the importance of discussing each of the risks in the boxed warning with patients who are candidates for JAK inhibitor therapy.

Dr. Blauvelt likened the lab monitoring required for JAK inhibitors to that required for methotrexate. This means ordering at baseline, a CBC with differential, a chem-20, a lipid panel, and a QuantiFERON-TB Gold test. The JAK inhibitor labels do not include information on the frequency of monitoring, “but I have a distinct opinion on this because of my blood test monitoring experience in the trials for many years,” he said.

“I think it’s good to do follow-up testing at 1 month, then every 3 months in the first year. In my experience, the people who drop blood cell counts or increase their lipids tend to do it in the first year.”

After 1 year of treatment, he continued, follow-up testing once every 6 months is reasonable. “If CPK [creatine phosphokinase] goes up, I don’t worry about it; it’s not clinically relevant. There is no recommendation for CPK monitoring, so if you’re getting that on your chem-20, I’d say don’t worry about it.”

Dr. Blauvelt reported that he is an investigator and a scientific adviser for several pharmaceutical companies developing treatments for AD, including companies that are evaluating or marketing JAK inhibitors for AD, including AbbVie, Incyte, and Pfizer, as well as dupilumab’s joint developers Sanofi and Regeneron.

Prurigo pigmentosa (PP), also known as Nagashima’s disease and “keto rash,” is an uncommon inflammatory skin condition of unknown etiology. It is characterized by pruritic, erythematous papules, papulovesicles, and vesicles that appear in a reticular pattern, most commonly on the trunk. The lesions are typically followed by postinflammatory hyperpigmentation (PIH).

Although PP has been described in people of all races, ages, and sexes, it is predominantly observed in Japan, often in female young adults. Triggers may include a ketogenic diet, diabetes mellitus, and pregnancy. Friction and contact allergic reactions to chrome or nickel have been proposed as exogenous trigger factors. Individual cases of Sjögren’s syndrome, Helicobacter pylori infections, and adult Still syndrome have also been associated with recurrent eruptions.

The diagnosis of PP is made both clinically and by biopsy. The histological features vary according to the stage of the disease. In early-stage disease, superficial and perivascular infiltration of neutrophils are prominent. Later stages are characterized by spongiosis and necrotic keratinocytes.

The first-line therapy for prurigo pigmentosa is oral minocycline. However, for some patients, doxycycline, macrolide antibiotics, or dapsone may be indicated. Adding carbohydrates to a keto diet may be helpful. In this patient, a punch biopsy was performed, which revealed an interface dermatitis with eosinophils and neutrophils, consistent with prurigo pigmentosa. The cause of her PP remains idiopathic. She was treated with 100 mg doxycycline twice a day, which resulted in a resolution of active lesions. The patient did have postinflammatory hyperpigmentation.

This case and photo were submitted by Brooke Resh Sateesh, MD, of San Diego Family Dermatology, San Diego, California, and Mina Zulal, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany. Dr. Bilu Martin edited the column.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.

References

1. Beutler et al. Am J Clin Dermatol. 2015 Dec;16(6):533-43.

2. Kim et al. J Dermatol. 2012 Nov;39(11):891-7.

3. Mufti et al. JAAD Int. 2021 Apr 10;3:79-87.

Prurigo pigmentosa (PP), also known as Nagashima’s disease and “keto rash,” is an uncommon inflammatory skin condition of unknown etiology. It is characterized by pruritic, erythematous papules, papulovesicles, and vesicles that appear in a reticular pattern, most commonly on the trunk. The lesions are typically followed by postinflammatory hyperpigmentation (PIH).

Although PP has been described in people of all races, ages, and sexes, it is predominantly observed in Japan, often in female young adults. Triggers may include a ketogenic diet, diabetes mellitus, and pregnancy. Friction and contact allergic reactions to chrome or nickel have been proposed as exogenous trigger factors. Individual cases of Sjögren’s syndrome, Helicobacter pylori infections, and adult Still syndrome have also been associated with recurrent eruptions.

The diagnosis of PP is made both clinically and by biopsy. The histological features vary according to the stage of the disease. In early-stage disease, superficial and perivascular infiltration of neutrophils are prominent. Later stages are characterized by spongiosis and necrotic keratinocytes.

The first-line therapy for prurigo pigmentosa is oral minocycline. However, for some patients, doxycycline, macrolide antibiotics, or dapsone may be indicated. Adding carbohydrates to a keto diet may be helpful. In this patient, a punch biopsy was performed, which revealed an interface dermatitis with eosinophils and neutrophils, consistent with prurigo pigmentosa. The cause of her PP remains idiopathic. She was treated with 100 mg doxycycline twice a day, which resulted in a resolution of active lesions. The patient did have postinflammatory hyperpigmentation.

This case and photo were submitted by Brooke Resh Sateesh, MD, of San Diego Family Dermatology, San Diego, California, and Mina Zulal, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany. Dr. Bilu Martin edited the column.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.

References

1. Beutler et al. Am J Clin Dermatol. 2015 Dec;16(6):533-43.

2. Kim et al. J Dermatol. 2012 Nov;39(11):891-7.

3. Mufti et al. JAAD Int. 2021 Apr 10;3:79-87.

Prurigo pigmentosa (PP), also known as Nagashima’s disease and “keto rash,” is an uncommon inflammatory skin condition of unknown etiology. It is characterized by pruritic, erythematous papules, papulovesicles, and vesicles that appear in a reticular pattern, most commonly on the trunk. The lesions are typically followed by postinflammatory hyperpigmentation (PIH).

Although PP has been described in people of all races, ages, and sexes, it is predominantly observed in Japan, often in female young adults. Triggers may include a ketogenic diet, diabetes mellitus, and pregnancy. Friction and contact allergic reactions to chrome or nickel have been proposed as exogenous trigger factors. Individual cases of Sjögren’s syndrome, Helicobacter pylori infections, and adult Still syndrome have also been associated with recurrent eruptions.

The diagnosis of PP is made both clinically and by biopsy. The histological features vary according to the stage of the disease. In early-stage disease, superficial and perivascular infiltration of neutrophils are prominent. Later stages are characterized by spongiosis and necrotic keratinocytes.

The first-line therapy for prurigo pigmentosa is oral minocycline. However, for some patients, doxycycline, macrolide antibiotics, or dapsone may be indicated. Adding carbohydrates to a keto diet may be helpful. In this patient, a punch biopsy was performed, which revealed an interface dermatitis with eosinophils and neutrophils, consistent with prurigo pigmentosa. The cause of her PP remains idiopathic. She was treated with 100 mg doxycycline twice a day, which resulted in a resolution of active lesions. The patient did have postinflammatory hyperpigmentation.

This case and photo were submitted by Brooke Resh Sateesh, MD, of San Diego Family Dermatology, San Diego, California, and Mina Zulal, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany. Dr. Bilu Martin edited the column.

Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.

References

1. Beutler et al. Am J Clin Dermatol. 2015 Dec;16(6):533-43.

2. Kim et al. J Dermatol. 2012 Nov;39(11):891-7.

3. Mufti et al. JAAD Int. 2021 Apr 10;3:79-87.

The patient’s initial injury was probably a subungual hematoma, which can take 12 to 18 months to resolve (the time it takes for a new toenail to grow). However, the precipitating trauma likely created an opportunity for fungal elements to invade the nail plate, resulting in the current complaint of superficial onychomycosis.

Onychomycosis is a frequently seen condition with increasing prevalence in older patients. It has several clinical presentations: Superficial onychomycosis manifests with chalky white changes on the surface of the nail. Distal subungual onychomycosis develops at the distal aspect of the nail with thickening and subungual debris. Proximal subungual onychomycosis occurs in the proximal aspect of the nail.

Although often asymptomatic, onychomycosis can cause thickening of the nails and development of subsequent deformity or pincer nails (which painfully “pinch” the underlying skin). It is especially concerning in patients with diabetes or peripheral neuropathy, in whom the abnormal thickness and shape of the nails can lead to microtrauma at the proximal and lateral attachments of the nail. These patients have an increased risk of secondary infection, possible complications, and even, for some, amputation.

If the patient is asymptomatic, and does not have diabetes, neuropathy, or other risk factors, treatment is not required. For those who would benefit from treatment, it is usually safe and inexpensive with the current generation of oral antifungal medications.

Some recommend confirmatory testing before treatment intiation,¹ but the low adverse effect profile of terbinafine and its current cost below $10/month² make empiric treatment safe and cost effective in most cases.³ If needed, and with access to microscopy, a potassium hydroxide (KOH) prep can be performed on scrapings from the affected portions of the nail. If that is not available, scrapings or clippings can be sent to the lab for KOH and periodic acid-Schiff staining.

The US Food and Drug Administration previously recommended follow-up liver enzyme tests if terbinafine is used for more than 6 weeks. (Fingernails require only 6 weeks of treatment, but toenails grow more slowly and require 12 weeks of treatment.) However, research has demonstrated that hepatotoxicity risk is extremely low and transaminase elevations are rare.⁴ In the rare cases that liver dysfunction has occurred, patients developed symptoms of jaundice, malaise, dark urine, or pruritis.⁴

This patient was counseled regarding the fungal nature of onychomycosis and the general safety of a 90-day course of oral terbinafine 250 mg/d—provided he did not have underlying liver or kidney disease or leukopenia. He reported that he had not had any blood work performed in the past year but was due for his annual wellness evaluation, at which he would discuss his overall health with his primary care provider, obtain baseline blood testing, and determine whether to proceed with treatment. He was advised that if, after starting treatment, he developed any symptoms of jaundice, dark urine, or other difficulties, he should report them to his care team.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

The patient’s initial injury was probably a subungual hematoma, which can take 12 to 18 months to resolve (the time it takes for a new toenail to grow). However, the precipitating trauma likely created an opportunity for fungal elements to invade the nail plate, resulting in the current complaint of superficial onychomycosis.

Onychomycosis is a frequently seen condition with increasing prevalence in older patients. It has several clinical presentations: Superficial onychomycosis manifests with chalky white changes on the surface of the nail. Distal subungual onychomycosis develops at the distal aspect of the nail with thickening and subungual debris. Proximal subungual onychomycosis occurs in the proximal aspect of the nail.

Although often asymptomatic, onychomycosis can cause thickening of the nails and development of subsequent deformity or pincer nails (which painfully “pinch” the underlying skin). It is especially concerning in patients with diabetes or peripheral neuropathy, in whom the abnormal thickness and shape of the nails can lead to microtrauma at the proximal and lateral attachments of the nail. These patients have an increased risk of secondary infection, possible complications, and even, for some, amputation.

If the patient is asymptomatic, and does not have diabetes, neuropathy, or other risk factors, treatment is not required. For those who would benefit from treatment, it is usually safe and inexpensive with the current generation of oral antifungal medications.

Some recommend confirmatory testing before treatment intiation,¹ but the low adverse effect profile of terbinafine and its current cost below $10/month² make empiric treatment safe and cost effective in most cases.³ If needed, and with access to microscopy, a potassium hydroxide (KOH) prep can be performed on scrapings from the affected portions of the nail. If that is not available, scrapings or clippings can be sent to the lab for KOH and periodic acid-Schiff staining.

The US Food and Drug Administration previously recommended follow-up liver enzyme tests if terbinafine is used for more than 6 weeks. (Fingernails require only 6 weeks of treatment, but toenails grow more slowly and require 12 weeks of treatment.) However, research has demonstrated that hepatotoxicity risk is extremely low and transaminase elevations are rare.⁴ In the rare cases that liver dysfunction has occurred, patients developed symptoms of jaundice, malaise, dark urine, or pruritis.⁴

This patient was counseled regarding the fungal nature of onychomycosis and the general safety of a 90-day course of oral terbinafine 250 mg/d—provided he did not have underlying liver or kidney disease or leukopenia. He reported that he had not had any blood work performed in the past year but was due for his annual wellness evaluation, at which he would discuss his overall health with his primary care provider, obtain baseline blood testing, and determine whether to proceed with treatment. He was advised that if, after starting treatment, he developed any symptoms of jaundice, dark urine, or other difficulties, he should report them to his care team.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

The patient’s initial injury was probably a subungual hematoma, which can take 12 to 18 months to resolve (the time it takes for a new toenail to grow). However, the precipitating trauma likely created an opportunity for fungal elements to invade the nail plate, resulting in the current complaint of superficial onychomycosis.

Onychomycosis is a frequently seen condition with increasing prevalence in older patients. It has several clinical presentations: Superficial onychomycosis manifests with chalky white changes on the surface of the nail. Distal subungual onychomycosis develops at the distal aspect of the nail with thickening and subungual debris. Proximal subungual onychomycosis occurs in the proximal aspect of the nail.

Although often asymptomatic, onychomycosis can cause thickening of the nails and development of subsequent deformity or pincer nails (which painfully “pinch” the underlying skin). It is especially concerning in patients with diabetes or peripheral neuropathy, in whom the abnormal thickness and shape of the nails can lead to microtrauma at the proximal and lateral attachments of the nail. These patients have an increased risk of secondary infection, possible complications, and even, for some, amputation.

If the patient is asymptomatic, and does not have diabetes, neuropathy, or other risk factors, treatment is not required. For those who would benefit from treatment, it is usually safe and inexpensive with the current generation of oral antifungal medications.

Some recommend confirmatory testing before treatment intiation,¹ but the low adverse effect profile of terbinafine and its current cost below $10/month² make empiric treatment safe and cost effective in most cases.³ If needed, and with access to microscopy, a potassium hydroxide (KOH) prep can be performed on scrapings from the affected portions of the nail. If that is not available, scrapings or clippings can be sent to the lab for KOH and periodic acid-Schiff staining.

The US Food and Drug Administration previously recommended follow-up liver enzyme tests if terbinafine is used for more than 6 weeks. (Fingernails require only 6 weeks of treatment, but toenails grow more slowly and require 12 weeks of treatment.) However, research has demonstrated that hepatotoxicity risk is extremely low and transaminase elevations are rare.⁴ In the rare cases that liver dysfunction has occurred, patients developed symptoms of jaundice, malaise, dark urine, or pruritis.⁴

This patient was counseled regarding the fungal nature of onychomycosis and the general safety of a 90-day course of oral terbinafine 250 mg/d—provided he did not have underlying liver or kidney disease or leukopenia. He reported that he had not had any blood work performed in the past year but was due for his annual wellness evaluation, at which he would discuss his overall health with his primary care provider, obtain baseline blood testing, and determine whether to proceed with treatment. He was advised that if, after starting treatment, he developed any symptoms of jaundice, dark urine, or other difficulties, he should report them to his care team.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

White nail changes are broadly called leukonychia: “leuko” meaning white and “nychia” referring to the nail. Scattered or single asymptomatic cloudy white nail lesions occurring without other associated skin or nail disorders are more specifically called punctate leukonychia.

Punctate leukonychia is theorized to be caused by trauma at the proximal nail matrix, affecting the developing nail.¹ The trauma may result from aggressive nail care practices or damage to the cuticle. In many cases, there is no history of known trauma. For this patient with multiple lesions, who performed manual work, multiple small traumas may have induced the punctate leukonychia.

Other causes of leukonychia include superficial onychomycosis (in which discoloration may be whiter than the usual yellow-brown), renal disease, and arsenic toxicity.¹ Arsenic toxicity causes transverse leukonychia in a band-like fashion, since it is a systemic insult to the growing nails. Longitudinal leukonychia is due to a more localized insult to the nail matrix, causing the white lines to grow out with the nail along the axis of the digit. Other than avoiding trauma, there is no treatment needed or recommended for punctate leukonychia.

The patient was counseled on the benign nature of his punctate leukonychia and assured that no treatment was necessary.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

White nail changes are broadly called leukonychia: “leuko” meaning white and “nychia” referring to the nail. Scattered or single asymptomatic cloudy white nail lesions occurring without other associated skin or nail disorders are more specifically called punctate leukonychia.

Punctate leukonychia is theorized to be caused by trauma at the proximal nail matrix, affecting the developing nail.¹ The trauma may result from aggressive nail care practices or damage to the cuticle. In many cases, there is no history of known trauma. For this patient with multiple lesions, who performed manual work, multiple small traumas may have induced the punctate leukonychia.

Other causes of leukonychia include superficial onychomycosis (in which discoloration may be whiter than the usual yellow-brown), renal disease, and arsenic toxicity.¹ Arsenic toxicity causes transverse leukonychia in a band-like fashion, since it is a systemic insult to the growing nails. Longitudinal leukonychia is due to a more localized insult to the nail matrix, causing the white lines to grow out with the nail along the axis of the digit. Other than avoiding trauma, there is no treatment needed or recommended for punctate leukonychia.

The patient was counseled on the benign nature of his punctate leukonychia and assured that no treatment was necessary.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

White nail changes are broadly called leukonychia: “leuko” meaning white and “nychia” referring to the nail. Scattered or single asymptomatic cloudy white nail lesions occurring without other associated skin or nail disorders are more specifically called punctate leukonychia.

Punctate leukonychia is theorized to be caused by trauma at the proximal nail matrix, affecting the developing nail.¹ The trauma may result from aggressive nail care practices or damage to the cuticle. In many cases, there is no history of known trauma. For this patient with multiple lesions, who performed manual work, multiple small traumas may have induced the punctate leukonychia.

Other causes of leukonychia include superficial onychomycosis (in which discoloration may be whiter than the usual yellow-brown), renal disease, and arsenic toxicity.¹ Arsenic toxicity causes transverse leukonychia in a band-like fashion, since it is a systemic insult to the growing nails. Longitudinal leukonychia is due to a more localized insult to the nail matrix, causing the white lines to grow out with the nail along the axis of the digit. Other than avoiding trauma, there is no treatment needed or recommended for punctate leukonychia.

The patient was counseled on the benign nature of his punctate leukonychia and assured that no treatment was necessary.

‌

Photo courtesy of Daniel Stulberg, MD. Text courtesy of Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

The U.S. Food and Drug Administration today approved a citrate-free, high-concentration formulation of adalimumab-bwwd (Hadlima), the manufacturer, Samsung Bioepis, and its commercialization partner Organon said in an announcement.

Hadlima is a biosimilar of the tumor necrosis factor inhibitor reference product adalimumab (Humira).

Hadlima was first approved in July 2019 in a citrated, 50-mg/mL formulation. The new citrate-free, 100-mg/mL version will be available in prefilled syringe and autoinjector options.

Wikimedia Commons/FitzColinGerald/ Creative Commons License

The 100-mg/mL formulation is indicated for the same seven conditions as its 50-mg/mL counterpart: rheumatoid arthritis, polyarticular juvenile idiopathic arthritis, plaque psoriasis, psoriatic arthritis, ankylosing spondylitis, adult and pediatric Crohn’s disease, and ulcerative colitis.

The approval was based on clinical data from a randomized, single-blind, two-arm, parallel group, single-dose study that compared the pharmacokinetics, safety, tolerability, and immunogenicity of the 100-mg/mL and 50-mg/mL formulations of Hadlima in healthy volunteers.

Both low- and high-concentration formulations of Humira are currently marketed in the United States. Organon said that it expects to market Hadlima in the United States on or after July 1, 2023, in accordance with a licensing agreement with AbbVie.

The prescribing information for Hadlima includes specific warnings and areas of concern. The drug should not be administered to individuals who are known to be hypersensitive to adalimumab. The drug may lower the ability of the immune system to fight infections and may increase risk of infections, including serious infections leading to hospitalization or death, such as tuberculosis, bacterial sepsis, invasive fungal infections (such as histoplasmosis), and infections attributable to other opportunistic pathogens.

A test for latent TB infection should be given before administration, and treatment of TB should begin before administration of Hadlima.

Patients taking Hadlima should not take a live vaccine.

The most common adverse effects (incidence > 10%) include infections (for example, upper respiratory infections, sinusitis), injection site reactions, headache, and rash.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration today approved a citrate-free, high-concentration formulation of adalimumab-bwwd (Hadlima), the manufacturer, Samsung Bioepis, and its commercialization partner Organon said in an announcement.

Hadlima is a biosimilar of the tumor necrosis factor inhibitor reference product adalimumab (Humira).

Hadlima was first approved in July 2019 in a citrated, 50-mg/mL formulation. The new citrate-free, 100-mg/mL version will be available in prefilled syringe and autoinjector options.

Wikimedia Commons/FitzColinGerald/ Creative Commons License

The 100-mg/mL formulation is indicated for the same seven conditions as its 50-mg/mL counterpart: rheumatoid arthritis, polyarticular juvenile idiopathic arthritis, plaque psoriasis, psoriatic arthritis, ankylosing spondylitis, adult and pediatric Crohn’s disease, and ulcerative colitis.

The approval was based on clinical data from a randomized, single-blind, two-arm, parallel group, single-dose study that compared the pharmacokinetics, safety, tolerability, and immunogenicity of the 100-mg/mL and 50-mg/mL formulations of Hadlima in healthy volunteers.

Both low- and high-concentration formulations of Humira are currently marketed in the United States. Organon said that it expects to market Hadlima in the United States on or after July 1, 2023, in accordance with a licensing agreement with AbbVie.

The prescribing information for Hadlima includes specific warnings and areas of concern. The drug should not be administered to individuals who are known to be hypersensitive to adalimumab. The drug may lower the ability of the immune system to fight infections and may increase risk of infections, including serious infections leading to hospitalization or death, such as tuberculosis, bacterial sepsis, invasive fungal infections (such as histoplasmosis), and infections attributable to other opportunistic pathogens.

A test for latent TB infection should be given before administration, and treatment of TB should begin before administration of Hadlima.

Patients taking Hadlima should not take a live vaccine.

The most common adverse effects (incidence > 10%) include infections (for example, upper respiratory infections, sinusitis), injection site reactions, headache, and rash.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration today approved a citrate-free, high-concentration formulation of adalimumab-bwwd (Hadlima), the manufacturer, Samsung Bioepis, and its commercialization partner Organon said in an announcement.

Hadlima is a biosimilar of the tumor necrosis factor inhibitor reference product adalimumab (Humira).

Hadlima was first approved in July 2019 in a citrated, 50-mg/mL formulation. The new citrate-free, 100-mg/mL version will be available in prefilled syringe and autoinjector options.

Wikimedia Commons/FitzColinGerald/ Creative Commons License

The 100-mg/mL formulation is indicated for the same seven conditions as its 50-mg/mL counterpart: rheumatoid arthritis, polyarticular juvenile idiopathic arthritis, plaque psoriasis, psoriatic arthritis, ankylosing spondylitis, adult and pediatric Crohn’s disease, and ulcerative colitis.

The approval was based on clinical data from a randomized, single-blind, two-arm, parallel group, single-dose study that compared the pharmacokinetics, safety, tolerability, and immunogenicity of the 100-mg/mL and 50-mg/mL formulations of Hadlima in healthy volunteers.

Both low- and high-concentration formulations of Humira are currently marketed in the United States. Organon said that it expects to market Hadlima in the United States on or after July 1, 2023, in accordance with a licensing agreement with AbbVie.

The prescribing information for Hadlima includes specific warnings and areas of concern. The drug should not be administered to individuals who are known to be hypersensitive to adalimumab. The drug may lower the ability of the immune system to fight infections and may increase risk of infections, including serious infections leading to hospitalization or death, such as tuberculosis, bacterial sepsis, invasive fungal infections (such as histoplasmosis), and infections attributable to other opportunistic pathogens.

A test for latent TB infection should be given before administration, and treatment of TB should begin before administration of Hadlima.

Patients taking Hadlima should not take a live vaccine.

The most common adverse effects (incidence > 10%) include infections (for example, upper respiratory infections, sinusitis), injection site reactions, headache, and rash.

A version of this article first appeared on Medscape.com.

The American Academy of Dermatology and the International League of Dermatological Societies (ILDS) have created a new registry that now accepts reports from health care providers worldwide about monkeypox cases and monkeypox vaccine reactions.

Patient data such as names and dates of birth will not be collected.

“As with our joint COVID-19 registry, we will be doing real-time data analysis during the outbreak,” dermatologist Esther Freeman, MD, PhD, director of MGH Global Health Dermatology at Massachusetts General Hospital, Boston, and a member of the AAD’s monkeypox task force, said in an interview. “We will to try to feed information back to our front line in terms of clinical characteristics of cases, morphology, and any unexpected findings.”

NIAID

According to Dr. Freeman, the principal investigator for the COVID-19 registry, this registry has allowed the quick gathering of information about dermatologic findings of COVID-19 from over 53 countries. “We have published over 15 papers, and we share data with outside investigators wishing to do their own analysis of registry-related data,” she said. “Our most-cited paper on COVID vaccine skin reactions has been cited almost 500 times since 2021. It has been used to educate the public on vaccine side effects and to combat vaccine hesitancy.”

The monkeypox registry “doesn’t belong to any one group or person,” Dr. Freeman said. “The idea with rapid data analysis is to be able to give back to the dermatologic community what is hard for us to see with any single case: Patterns and new findings that can be helpful to share with dermatologists and other physicians worldwide, all working together to stop an outbreak.”

The American Academy of Dermatology and the International League of Dermatological Societies (ILDS) have created a new registry that now accepts reports from health care providers worldwide about monkeypox cases and monkeypox vaccine reactions.

Patient data such as names and dates of birth will not be collected.

“As with our joint COVID-19 registry, we will be doing real-time data analysis during the outbreak,” dermatologist Esther Freeman, MD, PhD, director of MGH Global Health Dermatology at Massachusetts General Hospital, Boston, and a member of the AAD’s monkeypox task force, said in an interview. “We will to try to feed information back to our front line in terms of clinical characteristics of cases, morphology, and any unexpected findings.”

NIAID

According to Dr. Freeman, the principal investigator for the COVID-19 registry, this registry has allowed the quick gathering of information about dermatologic findings of COVID-19 from over 53 countries. “We have published over 15 papers, and we share data with outside investigators wishing to do their own analysis of registry-related data,” she said. “Our most-cited paper on COVID vaccine skin reactions has been cited almost 500 times since 2021. It has been used to educate the public on vaccine side effects and to combat vaccine hesitancy.”

The monkeypox registry “doesn’t belong to any one group or person,” Dr. Freeman said. “The idea with rapid data analysis is to be able to give back to the dermatologic community what is hard for us to see with any single case: Patterns and new findings that can be helpful to share with dermatologists and other physicians worldwide, all working together to stop an outbreak.”

The American Academy of Dermatology and the International League of Dermatological Societies (ILDS) have created a new registry that now accepts reports from health care providers worldwide about monkeypox cases and monkeypox vaccine reactions.

Patient data such as names and dates of birth will not be collected.

“As with our joint COVID-19 registry, we will be doing real-time data analysis during the outbreak,” dermatologist Esther Freeman, MD, PhD, director of MGH Global Health Dermatology at Massachusetts General Hospital, Boston, and a member of the AAD’s monkeypox task force, said in an interview. “We will to try to feed information back to our front line in terms of clinical characteristics of cases, morphology, and any unexpected findings.”

NIAID

According to Dr. Freeman, the principal investigator for the COVID-19 registry, this registry has allowed the quick gathering of information about dermatologic findings of COVID-19 from over 53 countries. “We have published over 15 papers, and we share data with outside investigators wishing to do their own analysis of registry-related data,” she said. “Our most-cited paper on COVID vaccine skin reactions has been cited almost 500 times since 2021. It has been used to educate the public on vaccine side effects and to combat vaccine hesitancy.”

The monkeypox registry “doesn’t belong to any one group or person,” Dr. Freeman said. “The idea with rapid data analysis is to be able to give back to the dermatologic community what is hard for us to see with any single case: Patterns and new findings that can be helpful to share with dermatologists and other physicians worldwide, all working together to stop an outbreak.”

Dermatologists are urging colleagues to be on the lookout for monkeypox and cautioning them to not miss cases that might appear to be something else.

Diagnosing cases “can be hard and folks should keep a very open mind and consider monkeypox virus,” said Misha Rosenbach, MD, a University of Pennsylvania dermatologist and member of the American Academy of Dermatology’s ad hoc task force to develop monkeypox content.
 

Although it’s named after a primate, it turns out that monkeypox is quite the copycat. As dermatologists have learned, its lesions can look like those caused by a long list of other diseases including herpes, varicella, and syphilis. In small numbers, they can even appear to be insect bites.

To make things more complicated, a patient can have one or two lesions – or dozens. They often cluster in the anogenital area, likely reflecting transmission via sexual intercourse, unlike previous outbreaks in which lesions appeared all over the body. “We have to let go of some of our conceptions about what monkeypox might look like,” said dermatologist Esther Freeman, MD, PhD, associate professor of dermatology, Harvard University, Boston, and a member of the AAD task force.

Still, the rapid rate of growth of the outbreak – up from 3,487 in the United States on July 25 to 12,689 as of Aug.16 – suggests that more dermatologists will see cases, and consultations may become more common too.
 

Know your lesions

Lesions are the telltale signs of symptomatic monkeypox. According to a recent New England Journal of Medicine study of 528 monkeypox cases from 16 nations, diagnosed between April 27 and June 24, 2022, 95% had skin lesions (58% were vesiculopustular), most commonly in the anogenital area (73%), and on the trunk/arms/or legs (55%) and face (25%), and the palms/soles (10%).

However, “the current monkeypox outbreak often presents differently from the multiple classic vesiculopustules on the skin we see in textbooks,” Dr. Yeung said. “Sometimes people can present with throat pain or rectal pain, with isolated pharyngitis or proctitis. Sometimes there are so few lesions on the skin that it can be easily confused with a bug bite, folliculitis, herpes, dyshidrotic eczema, or other skin problems. This is where dermatologists will get consulted to clarify the diagnosis while the monkeypox PCR test is pending.”

Dr. Rosenbach, who has provided consultation services to other physicians about cases, said the lesions often appear to be vesicles or pustules, “but if you go to ‘pop’ it – e.g., for testing – it’s firm and without fluid. This is likely due to pox virus inclusion, similar to other diseases such as molluscum,” caused by another pox virus, he said. Molluscum lesions are “characteristically umbilicated, with a dimple in the center, and monkeypox lesions seem to be showing a roughly similar morphology with many bowl- or caldera-shaped lesions that are donut-like in appearance,” he added.

Over time, Dr. Rosenbach said, “lesions tend to evolve slowly from smaller flesh-colored or vaguely white firm papules to broader more umbilicated/donut-shaped lesions which may erode, ulcerate, develop a crust or scab, and then heal. The amount of scarring is not yet clear, but we anticipate it to be significant, especially in patients with more widespread or severe disease.”

Jon Peebles, MD, a dermatologist at Kaiser Permanente in Largo, Md., who has treated a few in-person monkeypox cases, said the lesions can be “exquisitely painful,” although he’s also seen patients with asymptomatic lesions. “Lesions are showing a predilection for the anogenital skin, though they can occur anywhere and not uncommonly involve the oral mucosa,” said Dr. Peebles, also a member of the AAD monkeypox task force.

Testing is crucial to rule monkeypox in – or out

While monkeypox lesions can be confused for other diseases, Dr. Rosenbach said that a diagnosis can be confirmed through various tests. Varicella zoster virus (VZV) and herpes simplex virus (HSV) have distinct findings on Tzanck smears (nuclear molding, multinucleated cells), and have widely available fairly rapid tests (PCR, or in some places, DFA). “Staph and bacterial folliculitis can usually be cultured quickly,” he said. “If you have someone with no risk factors/exposure, and you test for VZV, HSV, folliculitis, and it’s negative – you should know within 24 hours in most places – then you can broaden your differential diagnosis and consider alternate explanations, including monkeypox.”

Quest Diagnostics and Labcorp, two of the largest commercial labs in the United States, are now offering monkeypox tests. Labcorp says its test has a 2- to 3-day turnaround time.

As for treatment, some physicians are prescribing off-label use of tecovirimat (also known as TPOXX or ST-246), a smallpox antiviral treatment. The CDC offers guidelines about its use. “It seems to work very fast, with patients improving in 24-72 hours,” Dr. Rosenbach said. However, “it is still very challenging to give and get. There’s a cumbersome system to prescribe it, and it needs to be shipped from the national stockpile. Dermatologists should be working with their state health department, infection control, and infectious disease doctors.”

It’s likely that dermatologists are not comfortable with the process to access the drug, he said, “but if we do not act quickly to control the current outbreak, we will all – unfortunately – need to learn to be comfortable prescribing it.”

In regard to pain control, an over-the-counter painkiller approach may be appropriate depending on comorbidities, Dr. Rosenbach said. “Some patients with very severe disease, such as perianal involvement and proctitis, have such severe pain they need to be hospitalized. This is less common.”

Recommendations pending on scarring prevention

There’s limited high-quality evidence about the prevention of scarring in diseases like monkeypox, Dr. Rosenbach noted. “Any recommendations are usually based on very small, limited, uncontrolled studies. In the case of monkeypox, truly we are off the edge of the map.”

He advises cleaning lesions with gentle soap and water – keeping in mind that contaminated towels may spread disease – and potentially using a topical ointment-based dressing such as a Vaseline/nonstick dressing or Vaseline-impregnated gauze. If there’s concern about superinfection, as can occur with staph infections, topical antibiotics such as mupirocin 2% ointment may be appropriate, he said.

“Some folks like to try silica gel sheets to prevent scarring,” Dr. Rosenbach said. “There’s not a lot of evidence to support that, but they’re unlikely to be harmful. I would personally consider them, but it really depends on the extent of disease, anatomic sites involved, and access to care.”

Emory University’s Dr. Yeung also suggested using silicone gel or sheets to optimize the scar appearance once the lesions have crusted over. “People have used lasers, microneedling, etc., to improve smallpox scar appearance,” he added, “and I’m sure dermatologists will be the ones to study what works best for treating monkeypox scars.”

As for the big picture, Dr. Yeung said that dermatologists are critical in the fight to control monkeypox: “We can help our colleagues and patients manage symptoms and wound care, advocate for vaccination and treatment, treat long-term scarring sequelae, and destigmatize LGBTQ health care.”

The dermatologists interviewed for this article report no disclosures.

Dermatologists are urging colleagues to be on the lookout for monkeypox and cautioning them to not miss cases that might appear to be something else.

Diagnosing cases “can be hard and folks should keep a very open mind and consider monkeypox virus,” said Misha Rosenbach, MD, a University of Pennsylvania dermatologist and member of the American Academy of Dermatology’s ad hoc task force to develop monkeypox content.
 

Although it’s named after a primate, it turns out that monkeypox is quite the copycat. As dermatologists have learned, its lesions can look like those caused by a long list of other diseases including herpes, varicella, and syphilis. In small numbers, they can even appear to be insect bites.

To make things more complicated, a patient can have one or two lesions – or dozens. They often cluster in the anogenital area, likely reflecting transmission via sexual intercourse, unlike previous outbreaks in which lesions appeared all over the body. “We have to let go of some of our conceptions about what monkeypox might look like,” said dermatologist Esther Freeman, MD, PhD, associate professor of dermatology, Harvard University, Boston, and a member of the AAD task force.

Still, the rapid rate of growth of the outbreak – up from 3,487 in the United States on July 25 to 12,689 as of Aug.16 – suggests that more dermatologists will see cases, and consultations may become more common too.
 

Know your lesions

Lesions are the telltale signs of symptomatic monkeypox. According to a recent New England Journal of Medicine study of 528 monkeypox cases from 16 nations, diagnosed between April 27 and June 24, 2022, 95% had skin lesions (58% were vesiculopustular), most commonly in the anogenital area (73%), and on the trunk/arms/or legs (55%) and face (25%), and the palms/soles (10%).

However, “the current monkeypox outbreak often presents differently from the multiple classic vesiculopustules on the skin we see in textbooks,” Dr. Yeung said. “Sometimes people can present with throat pain or rectal pain, with isolated pharyngitis or proctitis. Sometimes there are so few lesions on the skin that it can be easily confused with a bug bite, folliculitis, herpes, dyshidrotic eczema, or other skin problems. This is where dermatologists will get consulted to clarify the diagnosis while the monkeypox PCR test is pending.”

Dr. Rosenbach, who has provided consultation services to other physicians about cases, said the lesions often appear to be vesicles or pustules, “but if you go to ‘pop’ it – e.g., for testing – it’s firm and without fluid. This is likely due to pox virus inclusion, similar to other diseases such as molluscum,” caused by another pox virus, he said. Molluscum lesions are “characteristically umbilicated, with a dimple in the center, and monkeypox lesions seem to be showing a roughly similar morphology with many bowl- or caldera-shaped lesions that are donut-like in appearance,” he added.

Over time, Dr. Rosenbach said, “lesions tend to evolve slowly from smaller flesh-colored or vaguely white firm papules to broader more umbilicated/donut-shaped lesions which may erode, ulcerate, develop a crust or scab, and then heal. The amount of scarring is not yet clear, but we anticipate it to be significant, especially in patients with more widespread or severe disease.”

Jon Peebles, MD, a dermatologist at Kaiser Permanente in Largo, Md., who has treated a few in-person monkeypox cases, said the lesions can be “exquisitely painful,” although he’s also seen patients with asymptomatic lesions. “Lesions are showing a predilection for the anogenital skin, though they can occur anywhere and not uncommonly involve the oral mucosa,” said Dr. Peebles, also a member of the AAD monkeypox task force.

Testing is crucial to rule monkeypox in – or out

While monkeypox lesions can be confused for other diseases, Dr. Rosenbach said that a diagnosis can be confirmed through various tests. Varicella zoster virus (VZV) and herpes simplex virus (HSV) have distinct findings on Tzanck smears (nuclear molding, multinucleated cells), and have widely available fairly rapid tests (PCR, or in some places, DFA). “Staph and bacterial folliculitis can usually be cultured quickly,” he said. “If you have someone with no risk factors/exposure, and you test for VZV, HSV, folliculitis, and it’s negative – you should know within 24 hours in most places – then you can broaden your differential diagnosis and consider alternate explanations, including monkeypox.”

Quest Diagnostics and Labcorp, two of the largest commercial labs in the United States, are now offering monkeypox tests. Labcorp says its test has a 2- to 3-day turnaround time.

As for treatment, some physicians are prescribing off-label use of tecovirimat (also known as TPOXX or ST-246), a smallpox antiviral treatment. The CDC offers guidelines about its use. “It seems to work very fast, with patients improving in 24-72 hours,” Dr. Rosenbach said. However, “it is still very challenging to give and get. There’s a cumbersome system to prescribe it, and it needs to be shipped from the national stockpile. Dermatologists should be working with their state health department, infection control, and infectious disease doctors.”

It’s likely that dermatologists are not comfortable with the process to access the drug, he said, “but if we do not act quickly to control the current outbreak, we will all – unfortunately – need to learn to be comfortable prescribing it.”

In regard to pain control, an over-the-counter painkiller approach may be appropriate depending on comorbidities, Dr. Rosenbach said. “Some patients with very severe disease, such as perianal involvement and proctitis, have such severe pain they need to be hospitalized. This is less common.”

Recommendations pending on scarring prevention

There’s limited high-quality evidence about the prevention of scarring in diseases like monkeypox, Dr. Rosenbach noted. “Any recommendations are usually based on very small, limited, uncontrolled studies. In the case of monkeypox, truly we are off the edge of the map.”

He advises cleaning lesions with gentle soap and water – keeping in mind that contaminated towels may spread disease – and potentially using a topical ointment-based dressing such as a Vaseline/nonstick dressing or Vaseline-impregnated gauze. If there’s concern about superinfection, as can occur with staph infections, topical antibiotics such as mupirocin 2% ointment may be appropriate, he said.

“Some folks like to try silica gel sheets to prevent scarring,” Dr. Rosenbach said. “There’s not a lot of evidence to support that, but they’re unlikely to be harmful. I would personally consider them, but it really depends on the extent of disease, anatomic sites involved, and access to care.”

Emory University’s Dr. Yeung also suggested using silicone gel or sheets to optimize the scar appearance once the lesions have crusted over. “People have used lasers, microneedling, etc., to improve smallpox scar appearance,” he added, “and I’m sure dermatologists will be the ones to study what works best for treating monkeypox scars.”

As for the big picture, Dr. Yeung said that dermatologists are critical in the fight to control monkeypox: “We can help our colleagues and patients manage symptoms and wound care, advocate for vaccination and treatment, treat long-term scarring sequelae, and destigmatize LGBTQ health care.”

The dermatologists interviewed for this article report no disclosures.

Dermatologists are urging colleagues to be on the lookout for monkeypox and cautioning them to not miss cases that might appear to be something else.

Diagnosing cases “can be hard and folks should keep a very open mind and consider monkeypox virus,” said Misha Rosenbach, MD, a University of Pennsylvania dermatologist and member of the American Academy of Dermatology’s ad hoc task force to develop monkeypox content.
 

Although it’s named after a primate, it turns out that monkeypox is quite the copycat. As dermatologists have learned, its lesions can look like those caused by a long list of other diseases including herpes, varicella, and syphilis. In small numbers, they can even appear to be insect bites.

To make things more complicated, a patient can have one or two lesions – or dozens. They often cluster in the anogenital area, likely reflecting transmission via sexual intercourse, unlike previous outbreaks in which lesions appeared all over the body. “We have to let go of some of our conceptions about what monkeypox might look like,” said dermatologist Esther Freeman, MD, PhD, associate professor of dermatology, Harvard University, Boston, and a member of the AAD task force.

Still, the rapid rate of growth of the outbreak – up from 3,487 in the United States on July 25 to 12,689 as of Aug.16 – suggests that more dermatologists will see cases, and consultations may become more common too.
 

Know your lesions

Lesions are the telltale signs of symptomatic monkeypox. According to a recent New England Journal of Medicine study of 528 monkeypox cases from 16 nations, diagnosed between April 27 and June 24, 2022, 95% had skin lesions (58% were vesiculopustular), most commonly in the anogenital area (73%), and on the trunk/arms/or legs (55%) and face (25%), and the palms/soles (10%).

However, “the current monkeypox outbreak often presents differently from the multiple classic vesiculopustules on the skin we see in textbooks,” Dr. Yeung said. “Sometimes people can present with throat pain or rectal pain, with isolated pharyngitis or proctitis. Sometimes there are so few lesions on the skin that it can be easily confused with a bug bite, folliculitis, herpes, dyshidrotic eczema, or other skin problems. This is where dermatologists will get consulted to clarify the diagnosis while the monkeypox PCR test is pending.”

Dr. Rosenbach, who has provided consultation services to other physicians about cases, said the lesions often appear to be vesicles or pustules, “but if you go to ‘pop’ it – e.g., for testing – it’s firm and without fluid. This is likely due to pox virus inclusion, similar to other diseases such as molluscum,” caused by another pox virus, he said. Molluscum lesions are “characteristically umbilicated, with a dimple in the center, and monkeypox lesions seem to be showing a roughly similar morphology with many bowl- or caldera-shaped lesions that are donut-like in appearance,” he added.

Over time, Dr. Rosenbach said, “lesions tend to evolve slowly from smaller flesh-colored or vaguely white firm papules to broader more umbilicated/donut-shaped lesions which may erode, ulcerate, develop a crust or scab, and then heal. The amount of scarring is not yet clear, but we anticipate it to be significant, especially in patients with more widespread or severe disease.”

Jon Peebles, MD, a dermatologist at Kaiser Permanente in Largo, Md., who has treated a few in-person monkeypox cases, said the lesions can be “exquisitely painful,” although he’s also seen patients with asymptomatic lesions. “Lesions are showing a predilection for the anogenital skin, though they can occur anywhere and not uncommonly involve the oral mucosa,” said Dr. Peebles, also a member of the AAD monkeypox task force.

Testing is crucial to rule monkeypox in – or out

While monkeypox lesions can be confused for other diseases, Dr. Rosenbach said that a diagnosis can be confirmed through various tests. Varicella zoster virus (VZV) and herpes simplex virus (HSV) have distinct findings on Tzanck smears (nuclear molding, multinucleated cells), and have widely available fairly rapid tests (PCR, or in some places, DFA). “Staph and bacterial folliculitis can usually be cultured quickly,” he said. “If you have someone with no risk factors/exposure, and you test for VZV, HSV, folliculitis, and it’s negative – you should know within 24 hours in most places – then you can broaden your differential diagnosis and consider alternate explanations, including monkeypox.”

Quest Diagnostics and Labcorp, two of the largest commercial labs in the United States, are now offering monkeypox tests. Labcorp says its test has a 2- to 3-day turnaround time.

As for treatment, some physicians are prescribing off-label use of tecovirimat (also known as TPOXX or ST-246), a smallpox antiviral treatment. The CDC offers guidelines about its use. “It seems to work very fast, with patients improving in 24-72 hours,” Dr. Rosenbach said. However, “it is still very challenging to give and get. There’s a cumbersome system to prescribe it, and it needs to be shipped from the national stockpile. Dermatologists should be working with their state health department, infection control, and infectious disease doctors.”

It’s likely that dermatologists are not comfortable with the process to access the drug, he said, “but if we do not act quickly to control the current outbreak, we will all – unfortunately – need to learn to be comfortable prescribing it.”

In regard to pain control, an over-the-counter painkiller approach may be appropriate depending on comorbidities, Dr. Rosenbach said. “Some patients with very severe disease, such as perianal involvement and proctitis, have such severe pain they need to be hospitalized. This is less common.”

Recommendations pending on scarring prevention

There’s limited high-quality evidence about the prevention of scarring in diseases like monkeypox, Dr. Rosenbach noted. “Any recommendations are usually based on very small, limited, uncontrolled studies. In the case of monkeypox, truly we are off the edge of the map.”

He advises cleaning lesions with gentle soap and water – keeping in mind that contaminated towels may spread disease – and potentially using a topical ointment-based dressing such as a Vaseline/nonstick dressing or Vaseline-impregnated gauze. If there’s concern about superinfection, as can occur with staph infections, topical antibiotics such as mupirocin 2% ointment may be appropriate, he said.

“Some folks like to try silica gel sheets to prevent scarring,” Dr. Rosenbach said. “There’s not a lot of evidence to support that, but they’re unlikely to be harmful. I would personally consider them, but it really depends on the extent of disease, anatomic sites involved, and access to care.”

Emory University’s Dr. Yeung also suggested using silicone gel or sheets to optimize the scar appearance once the lesions have crusted over. “People have used lasers, microneedling, etc., to improve smallpox scar appearance,” he added, “and I’m sure dermatologists will be the ones to study what works best for treating monkeypox scars.”

As for the big picture, Dr. Yeung said that dermatologists are critical in the fight to control monkeypox: “We can help our colleagues and patients manage symptoms and wound care, advocate for vaccination and treatment, treat long-term scarring sequelae, and destigmatize LGBTQ health care.”

The dermatologists interviewed for this article report no disclosures.

One day in 2020, Ronda S. Farah, MD, was spending some downtime from her dermatology practice scrolling through social media. When she opened TikTok, she came across something that piqued her interest: A popular content creator was promoting the supplement biotin as a way to grow hair. Dr. Farah was immediately alarmed, because not only was the evidence that biotin increases hair growth shoddy, but the FDA had also warned that biotin supplements may interfere with lab tests for troponin.

Dr. Farah was moved to action and made a brief TikTok stating that use of biotin does not result in hair growth for most patients, which quickly shot up to over half a million views. She was flooded with messages from influencers and people desperate for an answer to their hair growth questions.

From that point on, Dr. Farah was immersed in the world of hairfluencers, the social media personalities who promote hair care trends, which formed the basis of a review, published in the Journal of Cosmetic Dermatology that she conducted with her colleagues at the University of Minnesota, Minneapolis. .

They reviewed five treatments that represent some of the most frequently discussed hair-growth trends on social media: rosemary, onion juice, rice water, castor oil, and aloe vera. For each, they evaluated recommendations on how the treatments were applied, possible harmful effects to the user, claims that weren’t totally based on scientific evidence, and the theoretical mechanism of action. “Overall,” they concluded, “there is little to no literature supporting these social media trends for hair growth.”

Of the five, rosemary, applied to the scalp or hair, has perhaps the most significant research behind it, according to Dr. Farah and coauthors. Methods of applying rosemary described on social media included use of prepackaged oil, boiling fresh rosemary leaves, adding leaves to oils and spraying it on or massaging it on the scalp, applying it in the hair, or using it as a rinse. Dr. Farah noted that the literature supporting the use of rosemary for hair growth does not represent the most robust science; the studies had small sample sizes and used nonstandardized methods of measuring hair growth.

“It didn’t really meet rigorous, strong study methods that a board-certified dermatologist with their expertise would consider a really solid study,” she said.

For the remaining methods, there was little research to support their use for hair growth. A few, the authors pointed out, can cause scalp burns (aloe vera), damage to hair follicles (rice water), contact dermatitis (aloe vera, onion juice), and, in the case of castor oil, hair felting..

Dr. Farah thinks social media can be a great tool to reach patients, but that people should be wary of what kind of information they’re consuming “and need to be aware of who their hairfluencer is,” she said. And, as she and her coauthors wrote: “We call on dermatologists, as hair and scalp disease experts, to serve as authorities on ‘hairfluencer’ trends and appropriately counsel patients.”

The study was independently supported. Dr. Farah reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

One day in 2020, Ronda S. Farah, MD, was spending some downtime from her dermatology practice scrolling through social media. When she opened TikTok, she came across something that piqued her interest: A popular content creator was promoting the supplement biotin as a way to grow hair. Dr. Farah was immediately alarmed, because not only was the evidence that biotin increases hair growth shoddy, but the FDA had also warned that biotin supplements may interfere with lab tests for troponin.

Dr. Farah was moved to action and made a brief TikTok stating that use of biotin does not result in hair growth for most patients, which quickly shot up to over half a million views. She was flooded with messages from influencers and people desperate for an answer to their hair growth questions.

From that point on, Dr. Farah was immersed in the world of hairfluencers, the social media personalities who promote hair care trends, which formed the basis of a review, published in the Journal of Cosmetic Dermatology that she conducted with her colleagues at the University of Minnesota, Minneapolis. .

They reviewed five treatments that represent some of the most frequently discussed hair-growth trends on social media: rosemary, onion juice, rice water, castor oil, and aloe vera. For each, they evaluated recommendations on how the treatments were applied, possible harmful effects to the user, claims that weren’t totally based on scientific evidence, and the theoretical mechanism of action. “Overall,” they concluded, “there is little to no literature supporting these social media trends for hair growth.”

Of the five, rosemary, applied to the scalp or hair, has perhaps the most significant research behind it, according to Dr. Farah and coauthors. Methods of applying rosemary described on social media included use of prepackaged oil, boiling fresh rosemary leaves, adding leaves to oils and spraying it on or massaging it on the scalp, applying it in the hair, or using it as a rinse. Dr. Farah noted that the literature supporting the use of rosemary for hair growth does not represent the most robust science; the studies had small sample sizes and used nonstandardized methods of measuring hair growth.

“It didn’t really meet rigorous, strong study methods that a board-certified dermatologist with their expertise would consider a really solid study,” she said.

For the remaining methods, there was little research to support their use for hair growth. A few, the authors pointed out, can cause scalp burns (aloe vera), damage to hair follicles (rice water), contact dermatitis (aloe vera, onion juice), and, in the case of castor oil, hair felting..

Dr. Farah thinks social media can be a great tool to reach patients, but that people should be wary of what kind of information they’re consuming “and need to be aware of who their hairfluencer is,” she said. And, as she and her coauthors wrote: “We call on dermatologists, as hair and scalp disease experts, to serve as authorities on ‘hairfluencer’ trends and appropriately counsel patients.”

The study was independently supported. Dr. Farah reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

One day in 2020, Ronda S. Farah, MD, was spending some downtime from her dermatology practice scrolling through social media. When she opened TikTok, she came across something that piqued her interest: A popular content creator was promoting the supplement biotin as a way to grow hair. Dr. Farah was immediately alarmed, because not only was the evidence that biotin increases hair growth shoddy, but the FDA had also warned that biotin supplements may interfere with lab tests for troponin.

Dr. Farah was moved to action and made a brief TikTok stating that use of biotin does not result in hair growth for most patients, which quickly shot up to over half a million views. She was flooded with messages from influencers and people desperate for an answer to their hair growth questions.

From that point on, Dr. Farah was immersed in the world of hairfluencers, the social media personalities who promote hair care trends, which formed the basis of a review, published in the Journal of Cosmetic Dermatology that she conducted with her colleagues at the University of Minnesota, Minneapolis. .

They reviewed five treatments that represent some of the most frequently discussed hair-growth trends on social media: rosemary, onion juice, rice water, castor oil, and aloe vera. For each, they evaluated recommendations on how the treatments were applied, possible harmful effects to the user, claims that weren’t totally based on scientific evidence, and the theoretical mechanism of action. “Overall,” they concluded, “there is little to no literature supporting these social media trends for hair growth.”

Of the five, rosemary, applied to the scalp or hair, has perhaps the most significant research behind it, according to Dr. Farah and coauthors. Methods of applying rosemary described on social media included use of prepackaged oil, boiling fresh rosemary leaves, adding leaves to oils and spraying it on or massaging it on the scalp, applying it in the hair, or using it as a rinse. Dr. Farah noted that the literature supporting the use of rosemary for hair growth does not represent the most robust science; the studies had small sample sizes and used nonstandardized methods of measuring hair growth.

“It didn’t really meet rigorous, strong study methods that a board-certified dermatologist with their expertise would consider a really solid study,” she said.

For the remaining methods, there was little research to support their use for hair growth. A few, the authors pointed out, can cause scalp burns (aloe vera), damage to hair follicles (rice water), contact dermatitis (aloe vera, onion juice), and, in the case of castor oil, hair felting..

Dr. Farah thinks social media can be a great tool to reach patients, but that people should be wary of what kind of information they’re consuming “and need to be aware of who their hairfluencer is,” she said. And, as she and her coauthors wrote: “We call on dermatologists, as hair and scalp disease experts, to serve as authorities on ‘hairfluencer’ trends and appropriately counsel patients.”

The study was independently supported. Dr. Farah reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A growing bandwagon of TikTok influencers have been using and promoting calamine lotion as a makeup primer under foundation. Though this may seem to work as a base layer for some people, dermatologists have concerns about this trend, particularly the risk of dryness.

As of Aug. 15, the #calaminelotion tag had more than 20.9 million views on TikTok, with hundreds of videos hailing the cream for its opaque pink tint and matte effect when used under foundation.

Calamine lotion has been used to treat itchy rashes, insect bites, and pain from chickenpox and poison ivy for years. It’s sold over the counter and is a common first-line treatment for skin discomfort that has been used for hundreds of years, says Doris Day, MD, a dermatologist who practices in New York City. It is also on the World Health Organization’s list of essential drugs, she points out in an interview.

“This is something that has been around for a long time. It’s recognized as a drug that has importance. So every now and then, I guess somebody comes across it” and says it’s a “new panacea” for something, “but it’s really not. It’s just an old-time simple product.”

Calamine lotion is made of ferric oxide and zinc oxide, which gives it its antiseptic and anti-itch properties, in addition to its characteristic pink color. Zinc oxide is also commonly used in mineral sunscreens, Dr. Day points out.

Although these ingredients are exceedingly safe with temporary, localized use, high concentrations and chronic use of calamine lotion can be irritating to the skin, says Pooja Sodha, MD, director of the Center for Laser and Cosmetic Dermatology at George Washington University, Washington.

At these high concentrations, calamine lotion can be drying, which may cause skin clumping and can be abrasive, says Dr. Sodha. She also cautions that the astringent properties of the zinc and the high pH may disrupt proteins on the skin, which breaks down the skin’s natural defenses. Using calamine lotion all over the face daily can “potentially damage your skin barrier to a point where you’re going to have to do a lot of extra work ... to bring it back,” says Dr. Sodha.

Dr. Day also worries about this trend resulting in dry skin among followers. Even in situations where using calamine lotion is appropriate, like treating poison ivy, its drying effects can sometimes irritate the skin.

And dry skin can be more than an aesthetic issue: It can lead to breaks in the skin, which can result in infections and scarring, she points out. Although this may not occur in someone with extremely oily skin, most people don’t have extremely oily skin, says Dr. Day, so this will be ineffective at best, and at worst, damaging.

If someone is looking for a good makeup base layer, Dr. Sodha recommends something that’s noncomedogenic and nonsensitizing, like silicon-based primers. “The great thing about these products is that they are noncomedogenic, so they won’t clog your pores. They’re synthetic, so they’re not going to cause some sort of allergy,” she says.

In general, both dermatologists warn their patients to be wary of the TikTok trends they see online, and they cautioned about possible effects with long term use of calamine lotion on the face, even if it appears to work with one-time use. “Consumers have to think about this like they do with any sort of product that they come across, just thinking about the long-term effects of something like this and how it works for their own skin,” says Dr. Sodha.

A version of this article first appeared on Medscape.com.

A growing bandwagon of TikTok influencers have been using and promoting calamine lotion as a makeup primer under foundation. Though this may seem to work as a base layer for some people, dermatologists have concerns about this trend, particularly the risk of dryness.

As of Aug. 15, the #calaminelotion tag had more than 20.9 million views on TikTok, with hundreds of videos hailing the cream for its opaque pink tint and matte effect when used under foundation.

Calamine lotion has been used to treat itchy rashes, insect bites, and pain from chickenpox and poison ivy for years. It’s sold over the counter and is a common first-line treatment for skin discomfort that has been used for hundreds of years, says Doris Day, MD, a dermatologist who practices in New York City. It is also on the World Health Organization’s list of essential drugs, she points out in an interview.

“This is something that has been around for a long time. It’s recognized as a drug that has importance. So every now and then, I guess somebody comes across it” and says it’s a “new panacea” for something, “but it’s really not. It’s just an old-time simple product.”

Calamine lotion is made of ferric oxide and zinc oxide, which gives it its antiseptic and anti-itch properties, in addition to its characteristic pink color. Zinc oxide is also commonly used in mineral sunscreens, Dr. Day points out.

Although these ingredients are exceedingly safe with temporary, localized use, high concentrations and chronic use of calamine lotion can be irritating to the skin, says Pooja Sodha, MD, director of the Center for Laser and Cosmetic Dermatology at George Washington University, Washington.

At these high concentrations, calamine lotion can be drying, which may cause skin clumping and can be abrasive, says Dr. Sodha. She also cautions that the astringent properties of the zinc and the high pH may disrupt proteins on the skin, which breaks down the skin’s natural defenses. Using calamine lotion all over the face daily can “potentially damage your skin barrier to a point where you’re going to have to do a lot of extra work ... to bring it back,” says Dr. Sodha.

Dr. Day also worries about this trend resulting in dry skin among followers. Even in situations where using calamine lotion is appropriate, like treating poison ivy, its drying effects can sometimes irritate the skin.

And dry skin can be more than an aesthetic issue: It can lead to breaks in the skin, which can result in infections and scarring, she points out. Although this may not occur in someone with extremely oily skin, most people don’t have extremely oily skin, says Dr. Day, so this will be ineffective at best, and at worst, damaging.

If someone is looking for a good makeup base layer, Dr. Sodha recommends something that’s noncomedogenic and nonsensitizing, like silicon-based primers. “The great thing about these products is that they are noncomedogenic, so they won’t clog your pores. They’re synthetic, so they’re not going to cause some sort of allergy,” she says.

In general, both dermatologists warn their patients to be wary of the TikTok trends they see online, and they cautioned about possible effects with long term use of calamine lotion on the face, even if it appears to work with one-time use. “Consumers have to think about this like they do with any sort of product that they come across, just thinking about the long-term effects of something like this and how it works for their own skin,” says Dr. Sodha.

A version of this article first appeared on Medscape.com.

A growing bandwagon of TikTok influencers have been using and promoting calamine lotion as a makeup primer under foundation. Though this may seem to work as a base layer for some people, dermatologists have concerns about this trend, particularly the risk of dryness.

As of Aug. 15, the #calaminelotion tag had more than 20.9 million views on TikTok, with hundreds of videos hailing the cream for its opaque pink tint and matte effect when used under foundation.

Calamine lotion has been used to treat itchy rashes, insect bites, and pain from chickenpox and poison ivy for years. It’s sold over the counter and is a common first-line treatment for skin discomfort that has been used for hundreds of years, says Doris Day, MD, a dermatologist who practices in New York City. It is also on the World Health Organization’s list of essential drugs, she points out in an interview.

“This is something that has been around for a long time. It’s recognized as a drug that has importance. So every now and then, I guess somebody comes across it” and says it’s a “new panacea” for something, “but it’s really not. It’s just an old-time simple product.”

Calamine lotion is made of ferric oxide and zinc oxide, which gives it its antiseptic and anti-itch properties, in addition to its characteristic pink color. Zinc oxide is also commonly used in mineral sunscreens, Dr. Day points out.

Although these ingredients are exceedingly safe with temporary, localized use, high concentrations and chronic use of calamine lotion can be irritating to the skin, says Pooja Sodha, MD, director of the Center for Laser and Cosmetic Dermatology at George Washington University, Washington.

At these high concentrations, calamine lotion can be drying, which may cause skin clumping and can be abrasive, says Dr. Sodha. She also cautions that the astringent properties of the zinc and the high pH may disrupt proteins on the skin, which breaks down the skin’s natural defenses. Using calamine lotion all over the face daily can “potentially damage your skin barrier to a point where you’re going to have to do a lot of extra work ... to bring it back,” says Dr. Sodha.

Dr. Day also worries about this trend resulting in dry skin among followers. Even in situations where using calamine lotion is appropriate, like treating poison ivy, its drying effects can sometimes irritate the skin.

And dry skin can be more than an aesthetic issue: It can lead to breaks in the skin, which can result in infections and scarring, she points out. Although this may not occur in someone with extremely oily skin, most people don’t have extremely oily skin, says Dr. Day, so this will be ineffective at best, and at worst, damaging.

If someone is looking for a good makeup base layer, Dr. Sodha recommends something that’s noncomedogenic and nonsensitizing, like silicon-based primers. “The great thing about these products is that they are noncomedogenic, so they won’t clog your pores. They’re synthetic, so they’re not going to cause some sort of allergy,” she says.

In general, both dermatologists warn their patients to be wary of the TikTok trends they see online, and they cautioned about possible effects with long term use of calamine lotion on the face, even if it appears to work with one-time use. “Consumers have to think about this like they do with any sort of product that they come across, just thinking about the long-term effects of something like this and how it works for their own skin,” says Dr. Sodha.

A version of this article first appeared on Medscape.com.