Cosmetic allergy can cause facial erythema, papules, scales, papules, scratches, crusts, and even vesicles and oozing with itching and stinging pain. For this, you can choose antihistamines, such as loratadine citrate tablets, 1 capsule 1 day at night, together with compound glycyrrhetinic acid capsules 3 times a day, 2 capsules 1 time. In case of erosion and exudation, you can apply compound polymyxin b ointment 2 times a day. After drying and crusting, you can apply topical zinc oxide oil, calcium-regulated phosphatase inhibitors such as 0.03% tacrolimus ointment and pimecrolimus ointment for treatment. During the treatment period, you should stop using all cosmetics and wash your face with warm water, no facial cleanser, and avoid alcohol.