There are many causes of facial flushing, one of the more common is facial erythema, a skin disorder caused by the dilation of facial capillaries. After the facial capillaries are dilated, it can cause the skin of the face to take on the appearance of a red face and the face can be flushed. There are generally two types: the first is hereditary; the second is induced. Hereditary is caused by genetic factors and often has a clear family history. Triggered is generally more common, and its cause is generally the long-term use of local glucocorticoid-induced capillary dilation, which leads to skin thinning and atrophy. There are also patients who live in alpine areas for a long time, or suffer from frostbite, which is an obstruction of blood circulation, blood stagnation and facial redness. Then there is the so-called cosmetic resurfacing, because skin care products mainly contain benzoic acid, benzoic acid repeatedly stimulates the thin skin, so that the unprotected dermis is exposed to the outside. Also, after receiving strong UV radiation, the face can become flushed. Sensitive skin can also generally lead to facial flushing. It is more sensitive to external sunlight, temperature and cosmetics, so it can easily lead to the production of facial flushing. When this happens, it is recommended to go to a regular hospital for consultation and treatment to avoid delaying the condition.