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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 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.

research Dermatological Problems and COVID-19

June 2023

COVID-19 can cause skin problems and affect dermatology treatments, with recommendations for skin care and cautious use of certain drugs.

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 Cutaneous Manifestations of the COVID-19 Pandemic in Schoolchildren and Adolescents

January 2023 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)”

The article concludes that schoolchildren and adolescents experienced various skin issues during the COVID-19 pandemic, including acne from masks and other skin reactions from the virus and vaccines.

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