Fungus, also called "tinea," is the term for fungal and yeast infections. Various forms of tinea can occur. Tinea versicolor affects the chest and back of sweaty, athletic young adults and can look like faint pink-white patches that leave behind temporary white or tan discoloration. Tinea capitis is a scalp infection, almost exclusively in children. Fungal infections of the rest of the body tend to occur in damp folds of skin (between toes, under breasts, and around the groin). Cool, loose cotton clothing, good aeration and drying powder can help prevent fungus.