Facial allergies are usually caused by ultraviolet light allergy, product allergy, etc. Different treatments should be used according to the cause of the allergy. 1. UV allergy: Facial skin is delicate and easily damaged by ultraviolet rays. You can choose to externally rub calcium-regulated phosphatase inhibitors such as pimecrolimus and tacrolimus ointment for relief treatment. Prohibit the consumption of photosensitive food, such as amaranth and other wild vegetables, mud snails, etc., and pay particular attention to sun protection in summer. 2. Product allergy: Allergic dermatitis caused by the use of certain types of cleansers, skin care products, cosmetics, etc., usually manifested as redness, swelling, itching and other symptoms. You can externally rub zinc oxide ointment, glycerite lotion and other anti-allergy drugs, which can effectively treat inflammation and relieve itching, redness and swelling. Patients should clean their face thoroughly and stop using the products immediately. In addition to ointments, anti-allergy medications can be taken, such as chlorpheniramine maleate and ebastine. Regardless of the type of medication, patients need to follow the doctor’s instructions, and if the face allergy does not improve, should promptly go to the dermatology department for examination and treatment.