The causes of redness may include impaired skin barrier function, rosacea, and systemic lupus erythematosus, which can be eliminated with the help of topical medications and oral medications. 1. Impaired skin barrier function: Redness, flakiness and sensitivity may appear on the face. Try to use lukewarm water and amino acid cleanser to clean the face, and at the same time choose to care for mild, less irritating skin care products; the more serious can also use vitamin E cream, polysulfonic acid mucopolysaccharides cream and other topical application, to help improve the redness of the face. 2. Rosacea: typical manifestations of persistent facial erythema and capillary dilatation, may be accompanied by rosacea, pimples, pustules and other symptoms of the patient can be applied locally fusidic acid cream, benzoyl peroxide, calcium-regulated phosphatase inhibitors and other ointments, with oral doxycycline, minocycline and other medications to help eliminate the redness of the face in the severe cases. 3. Systemic lupus erythematosus: manifested as characteristic facial butterfly-shaped erythema-like damage, accompanied by joint swelling and pain, multi-system organ function is impaired and other manifestations, through the use of glucocorticoids, such as methylprednisolone, immunosuppressants, such as cyclophosphamide, azathioprine and other medications to regulate autoimmune abnormalities, which will help to remove the symptoms of flushing. There may be other causes of redness, and it is recommended that patients go to the hospital in time for a clear diagnosis and standardized treatment under the guidance of a physician.