Allergic redness and swelling of the face first away from allergens, to the regular hospital dermatology consultation, for the cause of the disease, choose the appropriate drugs for treatment. Usually the common causes of allergic redness and swelling on the face are urticaria or angioedema, but the redness and swelling on the face also need to consider the possibility of hormonal dermatitis and so on. For urticaria or angioedema, according to the condition, you need to choose to use antihistamines, such as fexofenadine, avastin, etc.; severe or with laryngeal edema of urticaria, can be injected intravenously glucocorticosteroid treatment, such as prednisone, dexamethasone and so on. Facial redness and swelling are also common in facial hormone-dependent dermatitis, also known as hormone face. Generally caused by overuse of hormones, you need to stop using such hormones and change to other drugs such as tacrolimus and pimecrolimus cream as prescribed by your doctor. Avoid using cosmetics containing hormones. It is recommended that patients go to the dermatology department of regular hospitals for a clear diagnosis, and choose the appropriate medication and treatment under the guidance of the doctor.