Rashes can be maddeningly itchy, no matter what the cause. Doctors are likely to prescribe creams, lotions, or antihistamines for relief. They may also suggest cold compresses or other home remedies.

But COVID-19 can also cause skin rashes, dermatologists say. And the coronavirus is just one of many viruses that may lead to itchy and even painful skin issues. While a rash can be a part of a ...