Erythema of the face may be related to contact dermatitis, capillary dilatation, systemic lupus erythematosus and other factors. Symptomatic treatment is needed according to the specific cause of the disease, usually including medication, physical therapy and other methods. 1. Contact dermatitis: patients may be exposed to allergens or irritants, resulting in facial erythema with itching symptoms, which can be alleviated by oral loratadine, cetirizine and other drugs to reduce the local inflammatory reaction. At the same time, it is necessary to avoid re-exposure to disease-causing factors. 2. Capillary dilatation: commonly known as erythema, which is actually the dilatation of capillaries, thus causing facial erythema. Physical treatments such as pulsed dye laser and intense pulsed light can be used to destroy the abnormal capillary dilatation and improve the patient’s symptoms. 3. Systemic lupus erythematosus: Suspected systemic lupus erythematosus should be examined first to confirm the diagnosis, which belongs to autoimmune disease and will involve multiple systems. After the diagnosis is confirmed, the patient should cooperate with the doctor to choose medication, including glucocorticoid such as prednisone, immunosuppressant such as cyclophosphamide, and so on. It is recommended that patients with facial erythema should go to the hospital in time to get a clear diagnosis and symptomatic treatment, and the medication should be used according to the doctor’s instructions.