The rising standard of living has led to a wider use of cosmetics, with a wide variety of products and a market full of shoddy products, plus many people blindly choosing cosmetics and changing them frequently, leading to an increase in reports of cosmetic dermatoses year by year, seriously affecting the physical and mental health and quality of life of patients. Symptoms of cosmetic dermatitis: A few of the patients have primary irritant contact dermatitis: there is a clear history of cosmetic exposure, and dermatitis changes sooner after exposure; lesions are confined to the contact area, and the boundaries are clear: under the same conditions, there is generally more contact onset; there are varying degrees of papules, edema, rupture can be vesicles, exudate and crust. Self-perceived local lesions are pruritic, burning or painful. Most patients have allergic contact dermatitis: a history of definite use or repeated use of cosmetics with a certain incubation period; only a few people in the population using the same cosmetic usually develop the disease; the primary site is limited to the contact site, but can spread to surrounding or distant sites; the lesions are of various forms, with self-induced pruritus, and can manifest as dermatitis, erythema scales, head and facial redness, periocular inflammation with conjunctivitis, and The lesions are often prolonged; the patch test is positive; other non-cosmetic contact factors are excluded (e.g. contact dermatitis caused by contact with paint, rubber, etc.). Treatment principles: Ask about the cause, stop using all cosmetics: local treatment, i.e., anti-inflammatory, anti-itch, astringent and other medications, oral anti-allergic drugs if necessary. For recurring patients, Chinese herbal medicine is given orally, and the formula used is Sang Ju Drink plus or minus. Daily care at home: 1. Understand the brands and types of cosmetics used by patients on a daily basis and instruct them to choose cosmetics carefully, especially when choosing aromatic, sunscreen and special-purpose cosmetics, they must be used on the whole face only after 48-72 hours of patching experiments to prove that there is no redness, swelling, itching and other symptoms. 2.Intake appropriate amount of water, protein, vitamin B-rich cereals, rice and vitamin C-rich fruits, etc., which can promote skin metabolism. Avoid spicy and irritating foods, seafood, photosensitive foods and drugs (such as cilantro, citrus fruits, wild vegetables, etc., sulfonamides, hypoglycemic, tetracycline, ashwagandha, diuretics, sedatives, salicylic acid, oral contraceptives, etc.). 3, warm water to cleanse the face, choose less foam or non-foaming cleanser, the cleansing technique must be gentle, after washing with a towel to gently absorb the residual moisture on the face; and pay attention to avoid excessive washing, 1-2 times a day is appropriate. 4, should choose relatively simple composition of some hydrating, moisturizing softener and lotion skin care products, should not choose whitening and other efficacy products, in order to avoid aggravating the burden on the skin, inducing the occurrence of dermatitis. 5. Patients are advised to pay attention to sun protection, and during the treatment and recovery period should be reduced to go out and avoid sunlight activities, not to wash their faces with hot water, not to steam sauna, 6. psychological care. The psychological impact can lead to aggravation of the disease, most patients, especially female patients, tend to appear anxious, irritable and other psychological. It is important to know that cosmetic dermatitis is a common allergic reaction, as long as you actively cooperate with the treatment, usually a week to heal, not to stay or leave a small amount of temporary pigmentation, will not have much impact, to try to maintain a calm state of mind, to reduce the stimulation of the skin caused by adverse emotional factors.