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GlossaryChilblains (Pernio-like lesions)

itchy, red swellings on skin from cold exposure

Chilblains, also known as pernio or perniosis, are small, itchy, red or purple swellings on the skin that occur as a reaction to cold temperatures. They typically affect the fingers, toes, ears, and nose, and result from inflammation of small blood vessels in response to repeated exposure to cold but non-freezing air. This condition can cause pain, blistering, and in severe cases, ulceration.

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research A Systematic Review of Dermatologic Manifestations Among Adult Patients With COVID-19 Diagnosis

10 citations , March 2021 in “Skin health and disease”

COVID-19 patients often have skin issues like chilblain-like lesions and rashes, which can help in early diagnosis and sometimes indicate severe illness.

research Skin Manifestations Associated with COVID-19

18 citations , November 2021 in “Anais Brasileiros de Dermatologia”

COVID-19 can cause various skin issues, like rashes and lesions, which are more common in younger patients and can be linked to more severe complications.

research Cutaneous Manifestations and Considerations in COVID-19 Pandemic: A Systematic Review

101 citations , July 2020 in “Dermatologic therapy”

COVID-19 can cause skin issues like rashes and "COVID toes," and people with skin conditions should adjust their treatments if they get the virus.

research Dermatologic Manifestations of COVID-19: A Comprehensive Systematic Review

27 citations , November 2020 in “International Journal of Dermatology”

COVID-19 can cause skin issues like chilblains and rashes, which may help in early detection, especially in patients without other symptoms.

research Caution in the Time of Rashes and COVID-19

7 citations , July 2020 in “Journal of The American Academy of Dermatology”

Skin symptoms linked to COVID-19 are hard to confirm, and more testing is needed to identify which are truly caused by the virus.

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