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

headache, dry mouth, weight gain, swelling of the hands, feet or ankles, back or joint pain and flu-like symptoms such as nausea, fever and body aches, per Harvard Medical School. Rare but serious ...

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