Repeated facial allergy, consider the possibility of facial reoccurring dermatitis, commonly manifested as mild limited erythema, fine branched scales, self-pruritus, no papular symptoms, common in allergic people, the same treatment as when allergies occur, mainly to detach from allergens, and combined with drugs and physical therapy to control symptoms. However, if the allergy is repeated, it means that the protection in daily life is not good, especially to pay attention to the point of keeping away from allergens, and the following treatment methods can often be used: 1. Detachment from allergens: the basis for treatment is to detach from allergens, no matter what way of treatment is taken, it is difficult to completely cure the allergy if it is not detached from allergens. Therefore, the cause of allergy should be checked and avoided, such as stop using suspicious cosmetics, stop eating suspicious food, etc. If you can’t be sure, you can go to the hospital for blood sampling or prick test to check the allergen; 2, physical therapy: after the appearance of facial skin allergy, if the symptoms are mild, you can try to use clean cold water or saline to wash your face or wet compress, which can reduce redness and discomfort, and has a certain effect on controlling allergy. If left alone, it may aggravate or continue to occur after the allergy symptoms. Do not use warm water when cleaning the face, otherwise it may cause the facial tissue to produce more histamine and aggravate the allergic reaction; 3. Anti-allergic drugs: commonly used oral antihistamines include loratadine, cetirizine hydrochloride, orotadine hydrochloride tablets, etc. In addition, vitamin C also has a certain role. If there is obvious exudation, boric acid solution can be used as a wet compress. In addition, Doxepin ointment and Benadryl ointment also have anti-allergic and anti-itching therapeutic effects. If the face is erythematous and edematous in addition to allergic reaction to the formation of papules with itching symptoms, it is considered to be possible facial dermatitis, and should actively go to the hospital for differential diagnosis and symptomatic treatment in order to avoid recurrence. In addition, during the treatment process, attention should be paid to skin hydration and moisturizing, and the diet should be as light as possible, avoiding alcohol consumption.