You can choose laser treatment or medication to get rid of facial erythema. At present, laser treatment can achieve better efficacy and is a common clinical treatment, while medication has limited efficacy and may have certain side effects if oral medication with vasoconstrictive effect is used, which should be chosen carefully. Erythroderma is caused by persistent expansion of capillaries in the relatively superficial dermis of the face, clinically known as capillary dilation. The laser can destroy the abnormally dilated capillaries, after which they are gradually absorbed by the normal tissues of the body. Even under heat conditions, there are no dilated capillaries and no redness manifests itself, which is often treated with pulsed dye laser. In addition, intense pulsed light is also widely used, such as intense pulsed light, also known as photorejuvenation, the efficacy are more ideal, the treatment period and number of times need to be decided according to the specific situation of the patient. In addition to laser treatment, you can also use topical medications such as hyaluronic acid and mucopolysaccharide ointment with restorative effects under the guidance of a doctor, which can also improve the redness of the red blood. You can eat more food containing vitamin C and vitamin E, such as fresh dates, kiwi, oranges, etc. Maintain regular rest and rest, reduce staying up late, and wear a mask when you go out to avoid facial dryness caused by direct wind and sunlight, which can aggravate the congestion.