Facial allergies require analysis of the cause of the allergy. Some allergies can heal on their own after removing the allergen, and the time to heal on their own is related to their own constitution and the severity of the allergy, while other cases require intervention of medication. If the patient is allergic to dust, the reaction is mild, with only slight redness and peeling, accompanied by local itching, it can heal itself in about 5-7 days after removing the allergen. However, if it is caused by poor quality cosmetics or skin care products, it may take a little longer to recover. If the facial allergy is more serious, oral antihistamines such as desloratadine, levocetirizine, etc. should be taken as prescribed by the doctor. If the skin of the allergic area is intact and without exudates, topical application of dilaudid and alloxan cream can be used to combat allergies; if accompanied by exudates, redness and swelling, saline and boric acid solution should be given to local wet compresses first, and after the exudates and redness and swelling subside, topical application of cream preparations should be given. In addition, patients with facial allergy also need to avoid hot and cold stimulation and spicy and irritating food to avoid aggravating the allergic reaction.