Red itchy face allergy can be solved by the following three steps: 1. Keep away from allergens: there are many reasons for face allergy, you need to find out the cause of allergy, for the subsequent treatment is meaningful; if it is cosmetic allergy, you should suspend the use of cosmetics; if the allergy is caused by contact with pollen, chemical substances, then stay away from allergens; 2. Cleansing and moisturizing: after facial allergy, you can use 0.9% of physiological saline wet compress, 0.9% physiological saline is close to human body fluids, and the concentration of sodium chloride in sweat, blood, saliva and other body fluids is very similar, it is very safe for life and will not have any stimulation; facial swelling, itching, peeling and other phenomena will cause common problems, that is, skin dehydration, dryness and skin inflammation, at this time, more saline can be used every day for wet compresses for atopic dermatitis, with paper film, cotton wool The first thing you need to do is to soak your face in salt water and then put it on your face for 15-20 minutes, after which you don’t need to wash your face again, pat your face with your hands and absorb the salt water, then use moisturizing lotion and moisturizing essence to form a locking film for your skin and prevent excessive water loss; 3, Maintain indoor temperature and humidity, and avoid long-term exposure to UV rays.