We all know that everyone’s life is inseparable from their diet, because diet is necessary for our body to take in nutrients to sustain life activities, and to provide the skin with various nutrients for its normal physiological functions. However, diet is the main culprit of skin diseases. Studies have shown that diet is one of the most important causes of skin diseases, such as acne, eczema, seborrheic dermatitis, sores, etc., all related to diet. If you eat too much cold and raw food, it is easy to injure your spleen and produce dampness and eczema; if you eat too much spicy food, it is easy to produce stomach fire and acne; if you eat too much fat and sweet and greasy food, it is easy to develop canker sores. Therefore, there are many clinical skin diseases that require dietary contraindications, such as eczema, urticaria, atopic dermatitis, neurodermatitis, psoriasis, pityriasis rosea, lichen planus, erythrodermatitis, seborrheic dermatitis and other diseases and diet have an extremely close relationship, all because of the consumption of irritating food or hair and aggravate the disease. Therefore, for those patients with food allergies, during the onset or after the disease is cured, should limit or prohibit the consumption of fish, shrimp, crab, mutton and other fishy things, chicken, duck, goose and other poultry food as well as onion, ginger, garlic, chili, coriander, alcohol and other stimulating food or fried and other indigestible food. Patients with skin diseases need to pay attention to the following points: 1, suitable dietary regimen can promote recovery from the disease, such as rubella, chicken pox, herpes simplex, herpes zoster patients should eat more cold lotus seeds, bitter gourd, water chestnuts, winter melon, etc., avoid spicy, fatty and sweet thick taste. 2, suffering from folliculitis, boils, carbuncles, abscesses and other infectious skin diseases should avoid eating spicy and mutton, shrimp, crab, etc. 3, suffering from acne, seborrheic dermatitis, rosacea avoid eating stimulating foods such as coffee, strong tea, white wine, less greasy, sweet food, hot pot. Eat more celery and other coarse fiber vegetables to keep the bowels open. 4, contact dermatitis, eczema, urticaria and other allergic skin diseases patients should eat less seafood, milk, mutton, crab and bamboo shoots, leeks, mushrooms and other fishy and windy hair. Eat more fresh leafy greens and fruits that are light and cold in nature, such as loofah, cucumber, bitter melon, carrot, celery, mung beans, red beans, grapefruit, pear, water chestnut, sugar cane, etc. 5, psoriasis patients should avoid eating spicy, fish and shrimp, mutton, dog meat and other hairy products and alcohol. Eat more foods rich in vitamin C, vitamin E and vitamin A, such as fresh green leafy vegetables, tomatoes, carrots, lean meat and various fruits. 6, eczema children and their mothers should avoid eating spicy, fishy, cattle, sheep, goose and other hairy products. 7, neurodermatitis patients should quit smoking, alcohol and spicy stimulating food; eat more dates, lotus hearts, etc. 8, cold polymorphic erythema, frostbite, vasculitis, Raynaud’s disease patients should avoid eating cold fruits and vegetables, eat more warm food, such as beef and mutton, dates, chestnuts, chicken and onion, garlic, chili, pepper, etc. 9, allergic purpura should eat more food rich in vitamin C, vitamin E, food with high calcium content such as big bone soup, which can improve the permeability of blood vessels. 10, vitiligo patients eat more food containing folic acid, trace elements, mainly more food containing copper, cobalt, iron, such as sesame, peanuts, figs, mulberry, black beans, etc. 11, melasma patients eat more food rich in glutathione and vitamin C, such as tomato, kiwi, hawthorn, orange, fresh dates, lemon, etc. As the saying goes, “Medicine and food are the same source”, which has some truth, and it is no exception for skin diseases. Skin diseases in the treatment process is not only treatment, but also conditioning, from diet and other aspects of conditioning. Only then can a two-pronged approach be used to achieve the desired results.