Hair refers to foods that are nutritious or irritating, and are particularly prone to induce certain diseases (especially old diseases) or aggravate existing diseases. Hair taboo is of great significance in diet and dietotherapy.

Hair products, such as chicken, eggs, pig's head and so on, are all exotic protein to human body, which can constitute allergens and lead to human diseases.

Fish, shrimp and crab contain histamine, which can increase vascular permeability, microvascular dilation, congestion, plasma exudation, edema, excessive gland secretion and eosinophil increase, thus leading to allergic reactions, namely allergic reactions, and inducing skin diseases, such as erythema, papules, blisters and fever.

Some highly sensitive patients may even have allergic reactions to rice, wheat and corn. Alcohol, onion, garlic, etc. It can directly cause skin capillary dilation and blood flow acceleration through alcohol or volatile stimulating substances, which can aggravate or prolong the original skin disease.

Modern clinical research has also confirmed that avoiding hair is also of great significance to reduce postoperative wound infection and promote wound healing.

However, modern research has no exact scientific basis in this respect, and whether eating these so-called hair products will definitely lead to tumor recurrence. For example, people who believe in Islam eat beef and mutton every day. What if they have a tumor? You can't touch meat? Therefore, there is not much scientific evidence about "hair". It should be said that as long as there is no allergic reaction and no adverse reaction after eating, these things can be eaten less. Just control the delicious amount, for example, only eat 1 or twice a month, and eat less every time.