A new symptom of novel coronavirus infection is frostbite.

Many COVID-19 patients have purple or blue toe lesions appearing on their toes, but there is no scientific evidence yet that it is a Covid-19 symptom.

Many COVID-19 patients have purple or blue toe lesions appearing on their toes, but there is no scientific evidence yet that it is a Covid-19 symptom.A study was conducted by a US-based group to understand Covid-19's dermatological effects. It was led by Esther E Freeman, a Harvard Medical School researcher, in collaboration with the American Academy of Dermatology. According to the results, toe rashes may be an early marker of disease, or possibly one that it has resolved and passed. One of the most evident findings of the new paper is that most patients with "covid toes" were asymptomatic or had only mild symptoms, and nearly all were children or adults in their 20s and 30s. Furthermore, these rashes disappeared in two to three weeks without treatment.

This type of rash, called pernio or chilblains, usually occurs in the dead of winter because of exposure to cold, such as when a person is slogging in freezing rain in wet socks. But covid-19 patients are getting it in springtime.

According to Ebbing Lautenbach, chief of the division of infectious diseases at the University of Pennsylvania's Perelman School of Medicine, one theory behind these rashes is that it may be related to inflammation and blood-clotting complications.

However, further research is needed to determine whether COVID-19 causes this peculiar rash.

The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.