We tend to think of COVID-19 as a respiratory illness. But, like many viruses, COVID can also affect your skin and cause ...

Rare but serious side effects include rash, itching, yellowing of the skin, swelling of the face and throat ... of nerve pain called post-herpetic neuralgia that often follows a shingles' diagnosis.

Chicken pox (varicella) is the disease people get when they are exposed to the varicella-zoster virus for the first time.