What is facial erythema? Erythroderma is a facial phenomenon caused by poor dilatation of facial capillaries, damage to the stratum corneum, or superficial location of some capillaries, which are crisscrossed in a scattered pattern, like a spider’s web. Facial erythema patients’ face looks redder than normal skin color, some just have redness on both cheekbones with rounded borders. This skin is thin and sensitive, and the face becomes more red when it is too cold, too hot, or emotionally excited. Severe cases also form sedimentary discoloration, which is difficult to cure and not only affects the beauty of the appearance, but also causes a shadow to the psyche and brings great inconvenience to normal life. The causes of redness are divided into two main types: hereditary and induced. The hereditary type is mostly familial, and the triggering type is the most common. The main reasons for the following: 1, photoaging, sun protection is not appropriate, or not in place and caused by capillary dilation; 2, drug factors, such as long-term use of corticosteroids in the face; 3, beauty care factors, such as skin care products in the destruction of acid ingredients and hormone-dependent capillary dilation rupture, as well as skin immune fragility caused by peeling, often on the beauty salon to do suction face care will also lead to Capillary dilation rupture; 4, secondary to some systemic diseases, such as cirrhosis, hyperthyroidism, dermatomyositis, etc., can cause capillary dilation disorder. To remove the annoying red blood, you can choose the laser treatment. The most effective treatment is the dual wavelength dye laser. Based on the principle of selective photothermal action, the dual wavelength dye laser targets the hemoglobin in the dilated capillaries and selects the appropriate energy and pulse width to cause the hemoglobin to absorb light and denature and coagulate the contracted vessels so that they gradually close and then gradually metabolize out of the body without harming the normal skin. To prevent facial erythema, you need to address its causes and reduce its triggering factors, while you pay attention to good daily protection. First of all, to do a good job of sunscreen, choose the right sunscreen to reduce photoaging, thereby reducing the formation of red blood; secondly, to be careful with cosmetics, do not use cosmetics containing heavy metals, hormones, while reducing the use of some keratin exfoliator-type cosmetics, such as blemishes, whitening, etc.. Once again, be careful with drugs, it is best to buy drugs to the regular pharmacy or hospital pharmacy to buy the national approved drugs, some pharmaceutical, generic drugs often contain a lot of hormones, so be careful to choose; the last thing to note is not to use chemical peeling, such as whitening, which is often harmful to the skin epidermis, is also one of the important reasons for the increase in red blood in recent years.