Allergies have been bothering many people. Why is it easy to be allergic in spring?

1. Pollen: In the season of pollen transmission, tiny pollen particles will be scattered in the air and fly around with the flow of air, and some of them will be inhaled by people and absorbed by the skin.

2, dust: dust allergy is the allergic reaction of microorganisms living in dust, is the most common allergy. Dust allergy includes cotton fiber, fur and various fibers, animal fur, etc.

3. Seasonal changes: Due to various environmental factors, allergenic substances such as bacterial spores and pollen scattered in the air will release a large number of compounds-histamine, which are distributed in almost all tissues of the human body and cause facial skin allergies.

4. Wrong exercise time: Allergic patients should avoid exercising in the late morning or early afternoon. The reason is that flowers and trees begin to release pollen at sunrise, and the pollen concentration in the air reaches its highest near noon and early afternoon. Experts suggest that it is best to run in the evening or at night.

5. Plush toys: Plush toys are easy to accumulate dust and are common allergens. If someone at home is allergic, these toys should be put away or disposed of.

6, temperature changes: the temperature is hot and cold, making sensitive people's faces red and hot.

Second, the mechanism of skin allergy in spring

Normal people have a physiological protective immune response system, that is, when some foreign substances (also called antigens) such as pathogenic bacteria invade the human body, the human body can neutralize or digest the antigens by producing immunoglobulins from immune lymphocytes.

There are many allergic substances in spring, such as pollen, mites and trivia. For people who are too sensitive in constitution, the sensitivity of their immune response is beyond the proper degree and scope, that is, some foreign substances that will not cause harm to the human body, such as some pollen and protein, are usually regarded as foreign invaders, and are neutralized or digested (usually manifested as allergic reactions such as itching, erythema, wheal and edema), which will cause damage to some normal cells, tissues and organs of the body, thus causing local or even systemic allergic reactions.

Third, how to prevent skin allergies in spring? ?

1, the skin must keep enough moisture. When the skin is short of water, it is the most sensitive stage, and it is easy to be allergic to external influences. People always think that skin allergy means that the face begins to turn red, but it is not. When you feel nervous about your skin, it is actually the initial stage of sensitivity. Therefore, after washing your face every day, apply a moisturizing cream that suits you immediately when your skin is still wet.

Many people think that the more expensive skin care products are, the better. In fact, as long as you choose the skin care products that suit you, your skin will be in an excellent state. If the skin is allergic, choose a weakly acidic facial cleanser and a mild and non-irritating moisturizing product to keep the water from losing easily while replenishing water.

3, do a good job of daily sun protection, spring is suitable for outdoor activities, we must do enough protection for the skin to avoid the impact of sunlight, ultraviolet rays, pollen and so on on the skin.