"Fawu" is a popular title, which belongs to the category of health preservation, diet and dietary taboos in traditional Chinese medicine. Hair, that is, hair, is a concept in dietotherapy. The so-called hair products refer to foods that are particularly prone to induce certain diseases (especially old diseases) or aggravate diseases that have already occurred. Hair taboo is of great significance in diet conditioning and dietotherapy. Under normal circumstances, hair is also food, and moderate consumption will not cause side effects or discomfort to most people, but will only cause side effects or discomfort to some special constitutions and related diseases. Literally, hair includes attack, inducement, provocation and reply, but there is still a lack of systematic, complete and accurate theoretical explanation in concept. Commonly known as hot food, seafood, fishy hair and other diseases, there are different characteristics of heat, sores, poison, fire, wind, dampness, phlegm, gas, cold and chronic diseases.

Broadly speaking, as the late modern famous doctor Qin Bowei said, "Mustard, leek, mushroom, broccoli and so on. It can cause dry mouth, jealousy, swollen gums, constipation and fever, commonly known as hair. " Generally, it refers to foods that stimulate and aggravate trauma, children or certain diseases, such as mutton, sea cucumber and fish. Hair can be understood as a kind of food that normal intake of healthy people, in the process of taking medicine and recuperating after illness, induces a certain disease due to improper diet, stimulates new diseases or hinders treatment, aggravates the illness and affects the recovery of the body.

Traditional Chinese medicine believes that hair products refer to foods that can aggravate diseases or produce new pathological products, including the following contents. Spicy taste: ginger, onion, garlic, pepper, Sichuan pepper, pepper and so on. Endogenous gangrene and rheumatic blood are prone to occur, such as shrimp, fish, crab and other aquatic products, seafood, spring buds, mutton and so on. Foods that are conducive to damp heat, such as glutinous rice, caramel, meat and other sweet and greasy products. Easy-to-cool food, such as raw cold fruit, cold food, etc. Other common foods, such as konjac, taro, leek, coriander, etc. Loquat noodles, green onions, honey, etc. So eat less hair and try not to eat more.