Out of more than 3,000 skin diseases, how do you know what condition you have? These 23 skin rash pictures and expert tips can help you decipher your skin.

Rare 'Covid arm' that leaves Moderna vaccine recipients with giant red rashes may be a 'GOOD' sign that your immune system is ramping up to prevent infection, expert says ...

Skin rashes could be another surprising symptom of the coronavirus, according to dermatologists and doctors. Dr. Joanna Harp, a dermatologist at Weill Cornell Medicine in New York, told ABC News sh… ...

Vaccines unquestionably save lives, but their disease-fighting power also comes with a potential risk for mild side effects. Even though this can be slightly uncomfortable and annoying, side ...

Phytophotodermatitis is a skin condition caused by the sun and certain foods. It manifests in brown or red rashes, skin bumps, and irritation. Typical treatment includes dermatologist-prescribed ...

Armpit rashes can be caused by allergies, irritation, infections, or skin conditions. Learn about symptoms, causes, treatments, and prevention tips.

"Having a big red splotch on your arm for a couple of days may not be fun, but the reality is there's no need to panic and no reason not to get your second shot." Brown's rash subsided after a few ...

As the pandemic continues, experts are learning more and more about the symptoms of COVID-19. And, as it turns out, some of them -- like rashes -- may be easy to see.

More information has emerged about "COVID arm" — a delayed arm rash appearing after Moderna's COVID-19 vaccine is administered — including likelihood, duration and treatment.