When you are allergic to alcohol, you should first stop drinking immediately. If the symptoms are mild, you can usually recover gradually after stopping drinking; if the symptoms are severe, it is recommended that you seek medical treatment in a timely manner. 1. Mild allergy symptoms: When allergy occurs after drinking alcohol, if only mild symptoms appear, first stop drinking alcohol, and then observe whether your symptoms have worsened, if not, generally as long as you do not continue to drink, and so on, after the alcohol metabolism in the body, the symptoms will gradually disappear. 2. Heavy allergy symptoms: If the allergy symptoms are more serious after drinking, or the amount of alcohol ingested is more, then anti-allergy treatment such as loratadine should be carried out under the guidance of a doctor. It can be seen that once alcohol allergy occurs, first of all should stop drinking alcohol, at the same time, it is recommended to pay close attention to their own symptoms, if aggravated immediately seek medical treatment, and it is recommended to quit drinking after treatment.