How long can abdominal and stomach pain last after drinking alcohol for a long time after perforation of a stomach ulcer?

Unfortunately, I am not able to answer your question precisely, because it can be both 1 day and a week and a matter that requires urgent consultation with a doctor. If the pain does not disappear after the symptoms of alcohol poisoning (the so-called hangover) disappears or intensifies, other symptoms appear - I encourage you to consult a doctor. In the case of perforation of a stomach ulcer in the history of the disease, you should completely give up drinking alcohol. I leave a link to the text about stomach ulcers: https://www.gdziepolek.pl/artykuly/jak-leczyc-wrzody-zoladka-i-dwunastnicy