In daily life, it is common that some people, regardless of what kind of skin disease they suffer from, and regardless of what food they are allergic to, all the so-called “hairy things”, all abstain from eating. The result is malnutrition, which affects the health of the body. Even for patients with dermatological diseases, forbidden food is not always taboo, generally after a period of stability of the skin disease, you can try to eat allergic food, starting with a small amount, if no special reaction, can gradually increase the amount and frequency. After repeatedly desensitizing several times, some people can no longer have allergic reactions to the foods they were allergic to. Do not go overboard with the range of foods that are contraindicated. Patients can record the type and time of food eaten with the onset of symptoms. If the onset occurs 12 to 24 hours after eating, it is the allergenic food. This way the avoidance of food is targeted and narrows the scope of the avoidance. There are some skin diseases, the onset of which is closely related to certain foods. During the onset of the disease or a period of time after the disease is cured, should be limited or prohibited to eat fish, shrimp, crab and other fishy sea “hair”, as well as poultry food and onions, garlic, peppers and other irritating food. Some skin diseases, such as scabies and ringworm, do not need to be avoided because they are not related to diet. 1.Forbidden to eat spicy (chili, pepper, pepper), cold food and shrimp and crab. 2.Caution with hair food (carp, crucian carp, cilantro, leek, celery, pig’s foot stew with soybeans, etc.), it is best not to eat. 3, caution with the fruit: cinnamon, lychees, oranges and other fruits that can easily cause fire. 4, the diet is light, pay more attention to rest (life should be regular), and take medication on time.