Wipe the whole body with strong salt water (half a basin of warm water, two spoonfuls of salt) for five minutes. Don't wash the salt off. Wear clothes after drying, and avoid blowing.

Alcohol rash is caused by alcohol allergy after drinking, because everyone's reaction to alcohol, including the ability to accept alcohol, is different, so you need to know how much alcohol you can accept to avoid allergies.

The two necessary conditions of alcohol allergy are allergic constitution and alcohol, and most allergic constitutions lack acetaldehyde invertase. Alcohol, namely ethanol, is converted into acetaldehyde in the body. Due to the lack of acetaldehyde invertase in the body, it can no longer be converted into acetic acid and excreted, causing acetaldehyde poisoning, and people will have various allergic symptoms.

People who drink a lot of wine can transform quickly because there are so many enzymes in their bodies, and they will not get drunk without poisoning symptoms. Most people who are allergic to alcohol are allergic. Then allergic constitution will have various allergic symptoms once it comes into contact with alcohol, an allergic source. But these people are allergic, alcohol is an allergen, and contact with allergens can cause allergies.