First, the diet should be warm, soft and light, avoiding raw, cold, greasy and indigestible foods. Avoid chicken, dog, cow, sheep, goose, seafood, spicy, wine and other related foods. Second, avoid sun exposure. Avoid high temperature shower or long time external washing. Third, avoid the external use of alkaline detergents, can be appropriate external use of moisturizing and emollient skin care products. Fourth, intimate clothing should be cotton material is appropriate.