Facial reoccurring dermatitis is a mild erythematous scaling skin disease that occurs on the face, mainly in middle-aged women. In addition to papules, erythematous plaques with a fine layer of scaly bran-like scales may also appear on the surface of the skin, and the rash may spread to the neck and anterior cervical triangle. The initial onset is often sudden, with facial itching, the rash can generally subside on its own after about a week, but it is prone to recurrence, and mostly in the spring and autumn of each year, often delayed and difficult to heal, the cause of its occurrence is related to the physiological changes in the facial skin of middle-aged women and improper maintenance of facial skin care in daily life. Etiology The cause of this disease is unknown. It has been reported to be related to allergy or irritation from cosmetics, heat and warmth, light stimulation, dust, pollen, etc. It is thought that dust and pollen in the air adhere to the skin due to cosmetic application, and then are easily dissolved and absorbed by sunlight stimulation, local skin pH changes, and elevated skin surface temperature, resulting in allergenic effects. Therefore, this disease may be cosmetic dermatitis or seasonal contact dermatitis. In addition to the above-mentioned external factors, ovarian dysfunction, habitual constipation, autonomic dysfunction, mental stress and fatigue, digestive dysfunction, vitamin B, vitamin C deficiency and anemia may also be factors in the development of the disease. Symptoms The disease is a mild erythematous scaling dermatitis that occurs on the face, mostly in women. In Japanese dermatology books and magazines, it is also known as reoccurring facial dermatitis in women (Kaimi), reoccurring flushed flaky facial erythrodermatitis (Awara), and facial and neck chafing dermatitis (Yamada). The name of the disease is still used because it can also occur in men. It starts around the eyelids and gradually extends to the cheeks and the front of the ears, sometimes involving the entire face, with mild limited erythema and fine bran-like scales. Some may be mildly swollen, but never papules or blisters, and no infiltration or mossiness. The rash may occur on the neck and anterior cervical triangle, but not on the trunk and extremities. It is mostly seen in women aged 30 to 40 years, but it also occurs at the age of about 20 years, and can be seen in men of other ages as well. The onset of the disease is sudden, itching, about a week and subside, but can recur, repeated recurrence may have pigmentation. The season of onset is mostly spring and autumn. Diagnosis The disease occurs mostly in women aged 20-40 years old, with recurrence in spring and autumn and mild erythematous scaling dermatitis on the face. Need to distinguish with the following diseases: 1, facial simple furunculosis: pigment loss, with furfuraceous scales, no erythema, common in children. 2, facial eczema: rash polymorphic, with papules or papules, with oozing or mossy tendency, severe itching. 3, contact dermatitis: obvious redness or dense papules, blisters, with a clear history of contact, independent of the season. Treatment Wash your face after going out, do not use make-up crystals and strong alkaline soap, do not eat irritating food. Use simple non-irritating fragrance creams externally. Take vitamins B and C internally. Complications It starts around the eyelids and gradually extends to the cheeks and front of the ears, sometimes involving the whole face, with mild limited erythema and fine bran-like scales. Some may be mildly swollen, but never papules or blisters, and no infiltration or mossiness. The rash may occur on the neck and anterior cervical triangle, but not on the trunk and extremities. It is mostly seen in women aged 30 to 40 years, but it also occurs at the age of about 20 years, and can be seen in men of other ages as well. The onset of the rash is sudden, itchy, and subsides after about a week, but it can recur, and can be repeatedly recurring.