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 ...

The itching is often referred to as Hodgkin itch or paraneoplastic pruritus. Such itching often does not cause a visible rash, and scratching it does not provide any relief. T-cell or B-cell skin ...