In dermatology clinical practice, foods that trigger or aggravate dermatological conditions or itchy, painful symptoms are called “hair products”. Usually “hairy foods” are also foods that do not cause discomfort to most people when consumed in moderation, but can only trigger or aggravate certain special conditions and related diseases such as itching and allergic skin diseases. Chinese medicine’s understanding of food taboos predates food therapy. In the process of applying food for health care, disease treatment, rehabilitation and regimen, medical practitioners have gradually accumulated and revealed many undesirable factors that induce or aggravate diseases, reduce the efficacy of drugs, and affect the body’s recovery due to improper diet and unknown dietary avoidance. Among them, “hairy food” is one of the important factors. Thus, food taboos are used throughout the development of Chinese medicine, and effectively guide the prevention and treatment of diseases. This is reflected in the process of diagnosis, treatment and rehabilitation of skin diseases. Throughout the history of ancient medicine, numerous monographs on food taboos have appeared. For example, “Huangdi Neijing”, “Jin Kui Yao”, “Qian Jin Yao Fang”, “Ben Cao Gangmu”, “Food Materia Medica”, “Drinking Meal” and “Sui Xi Jiu Dietary Recipes” all have relevant records, and there are many kinds of forbidden foods with different characteristics, and there is still no lack of scientific reason. For example, the “Jin Kui Yao – animal, fish and insects taboo and treatment” pointed out: “the taste of food, a “hair” and dermatological In the clinical practice of dermatology, the food that induces or aggravates the condition of dermatological disease or itching, pain symptoms is called “hair The “hairy” food is usually called “hair products”. Usually “hairy food” is also food, moderate consumption of most people will not produce discomfort, but only for some special physical and related diseases such as itching, allergic skin disease will trigger or aggravate the disease. Chinese medicine’s understanding of food taboos predates food therapy. In the process of applying food for health care, disease treatment, rehabilitation and regimen, medical practitioners have gradually accumulated and revealed many undesirable factors that induce or aggravate diseases, reduce the efficacy of drugs, and affect the body’s recovery due to improper diet and unknown dietary avoidance. Among them, “hairy food” is one of the important factors. Thus, food taboos are used throughout the development of Chinese medicine, and effectively guide the prevention and treatment of diseases. This is reflected in the process of diagnosis, treatment and rehabilitation of skin diseases. Throughout the history of ancient medicine, numerous monographs on food taboos have appeared. For example, “Huangdi Neijing”, “Jin Kui Yao”, “Qian Jin Yao Fang”, “Ben Cao Gangmu”, “Food Materia Medica”, “Drinking Meal” and “Sui Xi Jiu Dietary Recipes” all have relevant records, and there are many kinds of forbidden foods with different characteristics, and there is still no lack of scientific reason. For example, “The Golden Horoscope – Animal, Fish and Insect Taboos and Treatment” points out: “The taste of food, there are appropriate with the disease, there are with the body for the harm. If it is appropriate, it will benefit the body, and if it is harmful, it will become a disease, which causes danger, and it is difficult to treat in all cases. The relationship between inappropriate food and the return of disease is suggested. The “Compendium of Materia Medica” records: “Where taking medicine, do not eat fatty pork and dog meat, greasy soup perch, fishy and stinky things. Where taking medicine, do not eat more raw garlic, caraway, ginger, all fruits, all the slippery things”. As the core content of food taboos “hairy things”, is the traditional experience from ancient times to the present, generations of doctors still lack a systematic, complete and comprehensive summary of this. Now, according to the relevant medical books, following the theory of Chinese medicine, combined with the clinical practice of dermatology to analyze and discuss the “hair products”. Second, the meaning of “hair” literally, “hair” that is, triggered, stimulated, recurrence, etc.. Hair food, in ancient medical texts, although the description of vivid, image, specific, but conceptually speaking there is a lack of systematic, complete and accurate theoretical interpretation. Generally known as pungent and hot things, seafood, fishy hair things, etc., which cause disease with the characteristics of fever, sores, poison, fire, wind, dampness, phlegm, gas and chronic diseases. For example, the medical heart conveys the room full book: “poisonous disease avoid seafood, chicken, shrimp hair”; “the compendium of materia medica”: “mutton big heat, fever and day sickness, malaria, after eating it will be fever to danger”; “with the rest of the diet recipes”: “goose The “Suixi Jue Dietary Recipes”: “Goose” is a “hot, windy sore”: chicken “eat more heat, wind”; pork “eat more to help damp heat”; mustard “wind and moving gas”; pepper “move fire” and so on. Through the analysis of the types of hair products and hair diseases described in ancient Chinese medical texts, the meaning of “hair products” includes both broad and narrow meanings. In the broad sense, as Qin Bo-Mou said in “Chinese medicine for the dietary problems of patients”: “all can cause dry mouth, red eyes, swollen teeth, constipation, such as capers, leeks, shiitake mushrooms, goldenseal, etc., have the possibility of fever, commonly known as hairy things. Therefore, “hairy food” can be understood as: in the normal intake of healthy people, during the period of taking medication and the post-illness adjustment of the diet process, can induce, stimulate new diseases or hinder the treatment, aggravate the disease, affecting the recovery of the body food. Generally speaking, more spicy and dry taste, strong irritation, or greasy and thick, fishy seafood and other foods. Because hairy food is not conducive to the treatment of the disease and the recovery of the body, so it should be avoided. In a narrow sense, “hairy food” is for patients with recurrent skin diseases such as allergic diseases, pruritic skin diseases and psoriasis, which are referred to in modern medicine. Ancient medical texts have also been recorded, Dai Sigong “the key to the treatment of evidence – Dan Poison” said: “Some people should not eat chicken and octopus moving wind and other things in their lives, before eating then Dan with the hair”. Therefore, the meaning of the hair can be understood as: because of individual physical reasons and induce or aggravate the disease food. In this sense, human food can become hairy, but also varies from person to person, will not produce pathogenic effects on anyone, often determined by family genetics, individual differences (allergy status), and by seasonal climate, mental and psychological, dietary mix, processing and other factors. The reason why “hair” can trigger or aggravate the disease, or cause lingering difficult to heal, modern medicine believes that: one is that certain foods contain foreign proteins as antigens (allergens), causing attacks or recurrence of allergic diseases, aggravation. Such as eggs, beef, lamb, milk, seafood, etc. often cause urticaria, eczema and other pruritic skin disease attacks or aggravation. Second, some spicy, irritating food, such as alcohol, chili, pepper, etc. is very likely to cause the spread of inflammation or aggravation. Third, the “hair” classification and pathogenic characteristics of the Qing Dynasty Wang Shixiong in the “with the rest of the diet” against partial food, advocate “food taboo”. Listed the “hairy things”: to cause fever – ginger, allium, mutton, Sichuan pepper, pepper; to the wind – spring mustard, shrimp, crab, goose; to help damp – loquat, single fat; to the accumulation of plug – mussels, snails, watermelon, fresh persimmon; to cause the disease, watermelon, fresh persimmon; to move blood – mushrooms, pepper; to move gas – flounder, mutton, spring mustard. The types of hairy substances involved tend to be concentrated, and it is stated that in the identification and treatment of diseases and health regimen, it is necessary to avoid eating harmful reasons. Now the traditional understanding of hair products are summarized into five categories: 1, help heat and fire: more with hot and dry nature, can help heat and fire, injure the fluid. Such as wine, onion, ginger, pepper, garlic, leek, mustard, mutton, dog meat and fried things. It is not advisable to consume it for pruritic and infectious skin diseases such as urticaria, eczema, canker sores and boils, lupus erythematosus, etc., which are caused by heat, yin deficiency and fire. 2, moving wind and hair: more with a rise, dispersing gas, fire and heat, can make people wind, causing itching or evil toxins to run away. Such as fish, shrimp, crab, shellfish, pork, chicken, goose, buttermilk, eggs, mushrooms, fungus, etc. Urticaria, eczema, dermatitis, sores, carbuncles and boils and other pruritic and infectious skin diseases should not be eaten. 3, help wet hair: more with fat, sweet, astringent, sticky nature, can produce wet brew heat, hinder the spleen transport, love evil. Such as glutinous rice, caramel, dates, pasta, fatty meat and sweet and greasy things. It is mostly used in diseases with insufficient body fluid and loss of nourishment, such as dry lips and tongue, dry stools, thirst and thirst for drinks, loss of skin moistening, low urination, red tongue with little fluid, etc. Damp-heat disease, jaundice, gonorrhea, dysentery, dysentery, malaria, etc. Avoid eating. 4, blood hair: more with blood, blood, the role of harsh nature, can move blood injury, forcing blood overflow. Such as chili, alcohol, beef and mutton, dog meat, scorpion, etc. Vasculitis such as allergic purpura, erythema nodosum, erythema multiforme, etc. should be avoided. 5, dynamic disease hair: more with strong stimulating nature, can induce chronic diseases, such as fish and shrimp and other seafood, beef and mutton and mushrooms, fungus, tsubaki sprouts, parsley, etc., had suffered from recurrent, allergic skin diseases, such as psoriasis, eczema, urticaria, etc. should be avoided. Fourth, the “hair” principle of disease 1, improper diet: more by food selection, collocation, improper cooking, or diet disorder, violation of the season, a long time eccentricity, so that the accumulation of harmful substances in food, or digestion, malabsorption, food bias damage the internal organs function, may become “hair “and lead to the occurrence of disease. Such as “Jing Yue Quan Shu” mentioned “even sick people, more than non-food and suspicious of food, said a day had food, or a meat, a noodle, the day that is sick”. Also mentioned goose eggs “more food hurt the stomach stagnant gas, chronic diseases”; chestnut “raw food difficult to dissolve, cooked food stagnant gas”. 2, food and drugs produce adverse effects: food and drugs have different tastes and effects, disease treatment, if the food and drug effects are not consistent, it will weaken, offset the efficacy of drugs, or even toxic side effects, thus hindering the treatment of disease. The “Compendium of Materia Medica” mentioned that “where taking medicine, do not eat fatty pork and dog meat, greasy soup perch, fishy and stinky things. Where taking medicine, do not eat more raw garlic, caraway, raw onion, all fruits, all the slippery things”, is not without reason. 3, the relationship between food and disease: disease has a surface, hot and cold, deficiency, yin and Yang, food has a warm, cold, sour, bitter, sweet, pungent and salty five flavors of the difference and the characteristics of the consumption and supplementation, dispersal, slippery and astringent. The role of food and the nature of the disease, the trend is contrary to help the evil and hurt the right, adding disease and disease. Wang’s Medical Cun”, “where the disease has not been healed suddenly add internal and external miscellaneous evidence, or old disease recurrence, are not good conditioning caused by”, that is, including food pathogenic factors. Clinical evidence such as damp heat avoid eating pork, syrup, pasta, dates; sores and other skin diseases avoid eating wine, garlic, pepper, ginger and fishy seafood. 4, the impact of food on the post-illness conditioning: the disease is healed, the remaining evil is not clear, the righteousness is not restored, improper diet can lead to “resurgence” or become other diseases. For example, the herb “harmful”: “sheep liver, where the sore family and chronic diseases, eating it is hair, should be avoided. Five, reasonable avoid eating “hair” dermatological patients can detect possible allergenic food through intradermal, prick test or food IgE, IgG test, or the type of food eaten, the amount and time and itching or skin damage occurring time, degree recorded (i.e., keep a food diary). In this way, you can target your diet. Generally, after the skin disease is cured and stabilized for a period of time, you can try to start with a small amount, and gradually increase the amount and frequency if there is no disease recurrence or aggravation. After repeatedly “desensitizing”, some people can no longer have allergic reactions to the foods they were allergic to. There are foods that are appropriate for the disease and those that are harmful to the body. If it is appropriate, it will benefit the body, but if it is harmful, it will become a disease, and this will lead to danger, and all cases are difficult to treat”. The relationship between inappropriate food and the return of disease is suggested. The “Compendium of Materia Medica” records: “Where taking medicine, do not eat fatty pork and dog meat, greasy soup perch, fishy and stinky things. Where taking medicine, do not eat more raw garlic, caraway, ginger, all fruits, all the slippery things”. As the core content of food taboos “hairy things”, is the traditional experience from ancient times to the present, generations of doctors still lack a systematic, complete and comprehensive summary of this. Now, according to the relevant medical texts, following the theory of Chinese medicine, combined with the clinical practice of dermatology to analyze and discuss the “hairy substances”.