1 removing allergens once you find that facial skin is allergic, you should first pay attention to removing allergens and relieving symptoms. Generally speaking, facial allergies, redness and itching are stimulated by cosmetics, chemicals, pollen, food allergies, air pollution and other factors. It is recommended to clean the room thoroughly, avoid too much contact with flowers and trees, stop using cosmetics, and don't eat seafood, beef and mutton, mangoes and other foods that are easy to cause allergies.

Applying a cold towel to your face can relieve inflammation and pain, calm down and relieve itching. If your face is allergic, red and itchy, you can properly apply a towel to your face with cold water to help relieve redness and itching.

3 Apply normal saline If the facial skin is red and itchy, you can apply a proper amount of normal saline to sensitive skin parts. Normal saline has strong permeability, has the functions of reducing swelling and removing redness, stabilizes the skin, and helps to relieve facial skin allergies, redness and itching. Note that it is not suitable for people with wounds or extremely sensitive skin.

4 pay attention to facial skin moisturizing. If the facial skin is too dry, it will aggravate erythema and itching. Therefore, when the face is allergic, red and itchy, you can choose some mild moisturizing cream or olive oil to help lock up skin moisture, improve skin dryness and reduce itching.