Facial cosmetic allergy is considered as facial contact dermatitis. Treatment: 1, first of all, we must get rid of the allergic cosmetics. 2, if the exudation is obvious, use 3% boric acid solution wet compress. If the rash is red and swollen, with a small amount of exudate, you can use topical glycolate lotion 3 times a day. 4. You can use topical zinc oxide paste 2-3 times a day. Try not to use corticosteroid preparations on the face, which can easily cause hyperpigmentation.5. Oral medications are mainly antihistamines, such as loratadine and levocetirizine. The treatment can be supplemented by 10% calcium gluconate and vitamin C. Severe patients need to apply hormones orally or intravenously within a short period of time.