Red spots on the body after drinking alcohol are usually caused by the fact that ethanol in alcohol is rapidly converted into acetaldehyde under the action of liver ethanol dehydrogenase, which is a kind of poisonous, harmful and expanding substance of capillaries around the body, so there will be the clinical symptom of red spots on the body. Usually, the following methods can be applied to excrete excessive acetaldehyde to play a therapeutic effect: First, you need to go to the hospital to inject naloxone hydrochloride to neutralize the excess acetaldehyde in the body, injecting 0.4-2mg of naloxone hydrochloride to alleviate the above situation. Secondly, injection of vitamin C plays the role of detoxification, liver protection and detoxification effect. Thirdly, apply diuretics such as hydrochlorothiazide and furosemide to relieve the excessive accumulation of alcohol in the body. Fourth, eat more vegetables and fruits rich in vitamin C to relieve alcohol and protect the liver.