Here’s why you should turn your bathtub into a medicinal swimming pool. Dilute bleach baths are antimicrobial and anti-inflammatory, so they are an affordable hack I swear by as a dermatologist to improve a number of skin conditions at home, including eczema, chronic painful boils in your armpits or groin (hidradenitis suppurativa), folliculitis, inflamed ingrown hairs, impetigo and buttne. Mix 1/4 cup or 1/2 cup regular 6% (NOT concentrated) bleach into 1/2 tub or 1 full tub of warm water, resp