a Medrol® dosepak (methylprednisolone), and OTC hydrocortisone 1% cream. The rash was almost completely resolved within 3 days. If a severe case of hot tub folliculitis is untreated, it can recur ...

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 ...