This skin disease commonly affects adolescents
and young adults, especially in warm
and humid climates
and is aggravated by sweating
and humidity.
You can treat flaking and dryness with over-the-counter dandruff or medicated shampoos. Shampoo the hair vigorously and frequently (preferably daily). Active ingredients in these shampoos include salicylic acid, coal tar, zinc, resorcin, ketoconazole, or selenium.