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‘COVID toes’, other rashes latest possible rare virus signs

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Don’t race to the emergency room if toes are the only worry, the American Academy of Dermatology said.

It issued advice this month that a telemedicine check is the first step for people wondering if they have “COVID toes” and who have no other reason for urgent care. Doctors should then decide if the patient should stay in home isolation or get tested.

The most common coronavirus symptoms are fever, a dry cough and shortness of breath – and some people are contagious despite never experiencing symptoms.

But, as this bewildering virus continues to spread, less common symptoms are being reported, including loss of smell, vomiting and diarrhoea and, increasingly, a variety of skin problems.

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In one report, dermatologists evaluated 88 COVID-19 patients in an Italian hospital and found one in five had some sort of skin symptom, mostly red rashes over the trunk. In another, Spanish doctors reported a series of 375 confirmed virus patients with a range of skin complaints, from hives to chickenpox-like lesions to the toe swellings.

Pictures of reddened toes and rashes all over social media and doctors’ chat groups have “already enabled the rapid recognition of skin signs by dermatologists [and] it is now time for rigorous science” to understand the link, Dr Kanade Shinkai of the University of California, San Francisco, wrote in a recent JAMA Dermatology editorial.

Freeman directs an international COVID-19 registry for doctors to report cases of possibly virus-linked skin symptoms. Of 500 reports since late March, about half are chilblain-like spots on the feet, she said.

Chilblains, what doctors call “pernio”, are an inflammatory reaction.

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When pernio-like reactions appear in coronavirus-infected patients is one of many mysteries.

For some people, it’s the first or even only symptom they notice. Others see the toe problem at the same time or even a few weeks after experiencing more common and serious COVID-19 symptoms.

It’s showing up in young people too, said Dr Amy Paller of Northwestern University, who is part of a paediatric dermatology registry also collecting images of patients’ toes.

Among the theories: it is inflammation triggered by an infection, instead of the cold; the virus is irritating the lining of blood vessels in the skin, or perhaps causing microscopic blood clots.

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“The public health message is not to panic,” Freeman said, noting that most toe patients she had seen have not become severely ill.

Are they contagious? “We can’t tell just by looking at your toes,” she said.

Other medical conditions, such as lupus, can cause similar spots – another reason doctors should discuss each patient’s overall health and next steps for testing or other needed care.

AP

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