If you’ve recently enjoyed some time in a hot tub and now find yourself dealing with an itchy, bothersome rash, you might be experiencing what’s commonly referred to as hot tub rash, also known as hot tub folliculitis. A hot tub rash — with itchy, bumpy, red skin — is an infection from common bacteria in hot tubs and swimming pools. Learn how to treat it. Save Your Spot Table of Contents What Is It? Signs and ...