Heat rash is a skin condition that develops in hot, humid environments. It causes small discolored or fluid-filled blisters to develop in the folds of your skin or areas where clothing rubs the skin.

Medically reviewed by Casey Gallagher, MD Armpit rashes often develop due to allergic reactions, infections, and chronic conditions. Rashes are common under the arms because the skinfold creates a ...

There are numerous potential causes for red spots to form on the skin, including sudden infections or underlying chronic conditions. On darker skin tones, the spots may appear as purplish or ...

The telltale itch begins subtly – perhaps a slight irritation on your arm or an uncomfortable warmth spreading across your chest. Before long, your skin erupts in patches of redness, bumps, or ...

Chronic skin conditions typically aren’t curable, but they can be managed with medication and by paying close attention to your lifestyle. Learn more about symptoms, treatments, and ways to feel ...