Medically reviewed by Susan Bard, MD Some causes of underarm rash include infection, allergic reaction, and inflammation. Itchy, inflammatory, bacterial, or fungal rashes in your armpit can be mild or ...

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 ...

Symptoms of a yeast infection on the skin of your armpit include: Bright red rash Itching Burning Spots that look like pimples How to treat it: Your doctor may prescribe antifungal treatment ...