Skin doctors suddenly are looking at a lot of toes — whether by emailed picture or video visit — as concern grows that for some people, a sign of Covid-19 may pop up in an unusual spot.

Boston dermatologist Esther Freeman expected to see skin complaints as the pandemic unfolded — various kinds of rashes occur when people get very ill from other viruses.

“But I was not anticipating those would be toes,” said Freeman of Massachusetts General Hospital, who has viewed via telemedicine more toes in the last several weeks than in her entire career.

They’re being called “Covid toes,” red, sore and sometimes itchy swellings on toes that look like chilblains, something doctors normally see on the feet and hands of people who’ve spent a long time outdoors in the cold.

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