What is missing if my face is often allergic?

Allergy is an abnormal reaction of the body's functions. This reaction is also very normal and is related to the individual's physical condition. If the patient's face is often allergic, you should check whether the cosmetics are used incorrectly or you have eaten something recently that causes such a reaction in the body. The face is the most vulnerable part and is also more sensitive, so you need to find the allergens and then treat it.

Allergy is an abnormal reaction of the body to normal substances (allergens).

Allergies occur when allergens come into contact with normal substances (allergic people with allergic constitutions. There are hundreds of allergens such as pollen, dust, foreign proteins, chemicals, ultraviolet rays, etc. Some allergies cannot even be found. The incidence of allergic diseases accounts for about 20% of the population, and occurs in all age groups from newborns to middle-aged and elderly people. There is no obvious gender characteristic, but there is a clear genetic characteristic.

(II) Causes of allergies

There are two types of cells in the human body, namely mast cells and alkaliphilic granulocytes, which are widely distributed in the nasal mucosa, bronchial mucosa, gastrointestinal mucosa, around the microvessels in the connective tissue under the skin and in the capsule of the internal organs. These two types of cells contain allergic mediators such as histamine, leukotrienes, 5-hydroxytryptamine, and kinase. Under the stimulation of environmental factors such as chemicals, air pollution, and sunlight radiation, a large number of free radicals will be produced in the body. If the free radicals are not removed in time after oxidation, they will damage the cell membranes of mast cells and alkaliphils, causing cell membrane denaturation and leading to cell instability. When unstable cells encounter allergens, antigens and antibodies react specifically, causing cell membrane degranulation and the release of allergic mediators. These allergic mediators can cause smooth muscle contraction, capillary dilation, increased permeability, mucus secretion and tissue damage, thereby triggering allergic reactions.

Allergic substances combine with the bronchial mucosa, nasal mucosa, and skin blood vessels to cause allergic rhinitis with sneezing and runny nose, allergic asthma with constant wheezing, and allergic dermatitis with itchy skin. In the process of allergic reaction, allergic mediators play a direct role. Allergens are the external cause of allergic symptoms, while low immune capacity of the body and oxidative damage of mast cells and alkali phagocytes by a large number of free radicals are the internal causes of allergy. In addition, according to traditional Chinese medicine theory and the latest research results, allergies are mainly caused by wind, dampness and heat accumulated in the blood and skin, or by blood heat and external wind. That is, it is closely related to the fact that there are certain toxins in the human blood.