Red spots all over the body after drinking alcohol but not itchy, generally alcohol metabolism disorder performance, need to immediately stop drinking alcohol, and drink milk and other drinks to relieve alcohol, if necessary, timely delivery to the hospital. A small number of people due to the lack of acetaldehyde dehydrogenase enzyme in the body, drinking alcohol will be metabolized to a large number of acetaldehyde, acetaldehyde accumulation in the body has a greater impact on the body. Many people will have large flushed spots on the face and trunk, with no obvious discomfort from the erythema. However, it is often accompanied by different degrees of dizziness, nausea, impaired consciousness, and in severe cases, it can seriously affect the central nervous system and even threaten life. If erythema appears all over the body after drinking, stop drinking immediately and drink more water to accelerate the metabolism of alcohol. It is best to drink more milk, honey water, green bean soup and other beverages to relieve alcohol toxicity. Once nausea, dizziness, confusion and other symptoms need to go to the hospital immediately. Acetaldehyde dehydrogenase has a certain heredity, there is no specific treatment, so the body lacks acetaldehyde dehydrogenase people are not recommended to drink alcohol, so as not to damage the body.