Allergic contact dermatitis occurs with cosmetic allergies on the face, which can manifest as acute, subacute, or chronic. First of all, you need to stop using the relevant cosmetics, and then carry out the corresponding anti-allergic treatment. You can choose topical drugs according to the inflammation performance: 1. Acute phase: Furfurylate lotion can be used when there is no exudate, topical zinc oxide oil can be used when there is a small amount of exudate, and cold wet compresses of boric acid solution can be used when there is obvious exudate. In the acute stage, the typical lesions are erythematous with clear borders, papules and papules may appear, and in severe cases, redness and swelling are obvious and blisters and blisters may appear, and after the blisters break down, vesicles, crusts and occasionally tissue necrosis may appear. Patients often feel pruritic or burning pain, such as untreated or repeated stimulation can be transformed into subacute, chronic dermatitis; 2, subacute phase: no exudate can be topical glucocorticoid cream, a small amount of exudate can be topical glucocorticoid paste, when there is infection can be applied mupirocin ointment. Stronger acting hormone preparations or large amounts can increase the risk of side effects, so it is recommended to use milder hormone preparations in small doses. Cosmetic irritation is weaker or less concentrated, the lesions can be subacute at first, manifesting as mild erythema and papules with unclear boundaries, reduced exudation of lesions, crusting and desquamation; 3. Chronic phase: long-term repeated exposure can lead to chronic local lesions, manifesting as mossy and scaly skin, etc. Topical glucocorticoid ointments, such as hydrocortisone butyrate cream and mometasone furoate cream, can be used. Usually, oral antihistamines are needed when allergy symptoms are severe. If blistering, oozing, erosion, itching, etc. occur, you should seek medical advice promptly and do not use medication blindly.