1, psychological aspects: to have an optimistic attitude, keep a happy and relaxed mood, avoid worry, tension, impatience and other bad emotions. 2, diet: less spicy food such as stimulating food, selective taboos, such as eating seafood, beef and mutton after the disease is obviously aggravated, and vice versa, without strict taboos. Eat more vegetables, fruits, beans. 3, lifestyle: to work and rest regularly, avoid staying up late; prohibit scratching; less bathing (1-2 weeks to wash once), prohibit scalding, rubbing, prohibit the use of soap, soap, salt water and other irritating detergents, after the bath coated with post-bath milk moisturizing. 4, avoid cold, cold or other infections and trauma.