Facial skin allergy, redness and itching, two major reasons need to be paid attention to

When the skin on your face is allergic, it will show symptoms of redness, swelling and itching. The specific reasons are generally related to the following two factors. Therefore, everyone should pay more attention.

1. Allergy internal factors

1. The skin structure is damaged.

2. The skin's immune and protective functions decline.

2. External causes of allergies

1. Wind, cold, heat, spicy food, sunlight, excitement, being grabbed, pressure, seafood, cosmetics, bites, dust, pollen, cold water, etc.

2. Various counterfeit and inferior cosmetics or cosmetics that are not suitable for you.

3. After peeling of Chinese herbal medicine or chemical medicine.

4. Long-term application of hormone-containing ointments or cosmetics.

5. Oily skin or skin damaged after acne heals.

6. Age: Aging may be an important reason for skin sensitivity. Some people's skin was not sensitive a few years ago, but has become sensitive in recent years. This is because young and healthy skin has a layer of weakly acidic sebum membrane on the surface to retain moisture and protect the skin from external damage. However, with age, this sebum membrane is not as healthy as before, so that some sensitive substances can easily invade the skin.

7. Pets: Sensitive skin can easily develop allergies due to the fur of domestic pets. The main reason for this kind of pet allergy is the protein secreted by the oil glands on the bodies of cats and dogs. When pets lick their fur, these proteins are attached to the fur, and then scattered into the air and attached to human skin.