Medically reviewed by Casey Gallagher, MD Armpit rashes can be caused by allergic reactions, infections, and chronic conditions. Armpits are a common place to get rashes because the skin there is thin ...

Learn about rheumatoid vasculitis, neutrophilic dermatoses, and other rheumatoid arthritis rashes, their symptoms, and when ...

Leukemia petechiae is a rash that people with leukemia often experience on their arms, legs, or trunk. Petechiae are tiny ...

"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 ...

Often called "the itch that rashes," atopic dermatitis symptoms typically include patches of red, dry, inflamed skin, the AAD ...

Its name comes from the hallmark symptom -- a bright red rash that appears on the cheeks, giving the appearance of a ‘slapped ...