Skin sensitization is a common phenomenon. A lot of rashes will appear on patients with allergies, sometimes accompanied by itching and pain, which is very uncomfortable. So what is the cause of skin allergies?

　　I. Improper diet
　　 Improper diet can cause skin allergies. For example, some human bodies are very susceptible to allergies. If you eat foods that are allergenic at this time, such as seafood, mango, pineapple, peanuts, and eggs Wait, it is very likely that allergic symptoms will appear. As long as you quit foods that cause allergies, your symptoms will ease.
　　Second, ultraviolet rays
　　 The sun is a good thing, but the ultraviolet rays in the sun have great lethality. If the skin is exposed to the sun for a long time, do not pay attention to sun protection, It is easy to have acute injuries. If you are repeatedly injured, patients will often be allergic to sunlight, which will cause allergic symptoms on the skin.

　　Three, Changes in temperature
　　Changes in temperature are also common symptoms of skin allergies. Many people are uncomfortable with sudden changes in temperature, mainly due to sudden drops in temperature. In summer, they often appear from When I suddenly entered the air-conditioned room outside. This discomfort manifests on the skin as an allergic symptom, also known as cold allergy.
　　Four pet skin allergies
　　Some people’s skin is sensitive skin, and it is easy to produce allergic symptoms to animal hair. At this time, if you have cats and dogs at home, Pets, then it is easy to have skin. Allergens are mainly proteins secreted by the sebaceous glands of pets, because animals like to lick their own fur. These proteins are also stuck to the hair at this time. The hair is scattered into the air and attached to the skin. Allergic symptoms naturally occur. .

　　Five, mosquito bites Jiao
　　Mosquito bites also cause skin allergy symptoms, which is also called insect bite dermatitis. When the skin is bitten by insects such as mosquitoes and fleas, their saliva is injected into the skin, which in turn induces an allergic reaction. If you want to prevent this, you must avoid as much as possible in a humid place, or in the woods and grass. There are many indoor mosquitoes, and you can appropriately light some mosquito coils.