This skin disease commonly affects adolescents and
young adults, especially in warm and
humid climates and
is aggravated by sweating and
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.