Abdominal pain after drinking alcohol should be considered as a result of alcoholic gastritis, or it may be due to the original gastritis or gastric ulcer, and the symptoms are aggravated after drinking alcohol. Alcohol can destroy the mucus barrier in the stomach and come into direct contact with the gastric mucosa, inducing acute alcoholic gastritis due to the irritating nature of alcohol, which can even lead to the detachment of the gastric mucosa in severe cases, and can induce gastrointestinal bleeding in addition to abdominal pain. If there is already gastritis or gastric ulcer, after alcohol breaks the gastric mucus barrier, both alcohol and gastric acid can act on the ulcer surface or the gastric mucosa which is already congested and degenerated to produce obvious abdominal pain. These conditions require prompt abstinence from alcohol, combined with treatment with magnesium aluminum carbonate, ranitidine and other drugs if necessary. If accompanied by diarrhea, abdominal distension, it is necessary to consider the pain caused by acute gastroenteritis, acute gastroenteritis is not much related to alcohol, it is possible that the deterioration of the next drink dishes, you can try norfloxacin treatment.