After drinking alcohol stomach upset should drink more water, when necessary to take medication. After drinking alcohol stomach is mainly alcohol in the stimulation of gastric mucosa caused, at this time you can choose to drink some warm water, fruit juice, yogurt, soybean milk, etc., can dilute the alcohol in the stomach, can relieve the stomach discomfort. If the stomach is particularly difficult, you can consider taking drugs to protect the gastric mucosa, such as bismuth potassium citrate, bismuth pectin, etc. If the gastric acid secretion is too much, you can take acid-suppressing drugs, such as omeprazole, famotidine and so on. After drinking alcohol, pay attention to the diet, to light and easy to digest food, eat less spicy stimulating food. At the same time more rest, avoid overwork. Since drinking is not good for your health, it is recommended to develop good living habits and quit smoking and drinking in time. Observe your condition after drinking and seek medical attention if you experience serious discomfort.