In normal daily life and diagnosis and treatment work, people often ask if they should avoid food when they are sick. Especially patients with skin diseases, it is true that some diseases will be aggravated after eating some food, such as increased rash, itching intense, etc., but not all diseases should be avoided. For some allergic diseases such as urticaria, eczema, etc., heterogeneous proteins (fish, shrimp and seafood), spicy hair, etc. to avoid. Psoriasis (psoriasis) spicy, irritating, flavorful food should be avoided. Vitiligo patients should avoid eating fruits and foods that contain much vitamin C. Acne patients should eat less sweet products, high fat, high calorie food, can eat fish and shrimp and other high-protein foods. So can not end one by one, only point to point. In addition, in the folklore of many say, such as chicken, geese, ducks, beef and mutton, etc. also belong to the hair, because they usually often eat some insects, fish food. In short, we should be different from person to person, the same disease someone ate no feeling, someone may be aggravated, reminding us that if we are sick after eating some kind of food aggravation, it is necessary to avoid a taboo, based on the actual situation, a taboo may lead to malnutrition, especially for children during the period of growth and development.