As the weather warms up, sunlight exposure becomes stronger, flowers and plants are colorful, and people’s outdoor activities gradually increase, so do the number of patients with facial skin allergies, especially in women. Facial reoccurring dermatitis is the most common type of skin irritation among these patients. Etiology Facial reoccurring dermatitis is a common clinical skin disease. It occurs in young and middle-aged women. Spring and summer are its high incidence seasons. The cause of the disease is related to allergy or stimulation of cosmetics, warmth, sunlight irritation, dust, pollen, etc. Due to the application of cosmetics and adherence to the skin, and then after sunlight stimulation, local skin pH changes, skin surface temperature increases, etc. so that it is easy to dissolve, absorb and allergenic effect occurs. In addition, ovarian dysfunction, habitual constipation, autonomic dysfunction, mental stress and fatigue, digestive dysfunction, vitamin B, vitamin C deficiency and anemia can also trigger this disease. Therefore, from the viewpoint of its clinical manifestations and causes, the disease includes cosmetic dermatitis, seasonal dermatitis and solar dermatitis, or a combination of these dermatitis reactions. Clinical manifestations The common clinical manifestations are initially around the eyes, gradually expanding to the cheeks and front of the ears, and sometimes involving the entire face, with mildly limited erythema and fine bran-like scales. Some may be mildly swollen, but never papules, blisters, and no infiltration or tinea. The rash may occur on the neck and frontal triangle, but not on the trunk or extremities. The rash is usually seen in women between 30 and 40 years of age, but it can also occur in women around 20 years of age, and in men of other ages. The onset of the disease is sudden, itchy, about a week and subside, but can recur, repeated recurrence can have pigmentation. The season of onset is usually spring and autumn. Some cases are accompanied by acne. Itching, burning, tightness, and anxiety are the main causes of acne, and they seriously affect the patient’s appearance and cause discomfort. Treatment and Prevention Treatment is a combination of Chinese and Western medicine, internal and external use, cold spray containing medicine for the face, and oral antihistamines for Western medicine to stop itching. Chinese medicine to remove wind and clear heat, Jing Fang Tang plus reduction. Of course, prevention is also very important, during the attack period as little as possible, avoid taking photosensitive food, timely medical consultation, exercise. Wash your face after going out, do not use cosmetics and strong alkaline soap, and do not eat irritating food. Use simple, non-irritating creams externally. Take vitamin B, C, etc. internally. Photosensitive foods 1, vegetables: spinach, lettuce, celery, parsley, amaranth, nasturtium, rape, snow lettuce, radish leaves, mustard, marjoram, purple clouds, capers, etc.; 2, fruits: mango, pineapple, citrus, lemon, grapefruit, figs, etc.; 3, other: shiitake mushrooms, flat mushrooms, fungus, mud snail, fennel, etc.