Eating something like bread before drinking alcohol will line your stomach, also drinking water between each alcoholic drink will make it less likely that you are sick or get a hangover. Mixing milk and alcohol is more likely to make you sick as the milk will curdle.
Belching, also known as burping, is the act of expelling gas from the stomach out through the mouth. The usual cause of belching is a distended (inflated) stomach caused by swallowed air. The distention of the stomach causes abdominal discomfort, and the belching expels the air and relieves the discomfort.
There are at least six causes of the gasless abdomen in the adult. A specific cause of the gasless abdomen can usually be made when the patient's history is known. The most serious cause of the gasless abdomen is small-bowel obstruction with or without ischemia.