There are many reasons for stomach nausea and vomiting the day after a hangover, such as acute gastritis, gastrointestinal disorders, and indigestion. The causes are different and so are the treatments. General treatment and medication are available. 1. Acute gastritis: you can drink milk, honey water to speed up the excretion of alcohol; medication can also be taken under the guidance of a physician, such as morphine, omeprazole, metoclopramide and other drugs to promote gastrointestinal dynamics, acid-suppressing drugs, inhibit nausea, vomiting and other symptoms in order to alleviate nausea and vomiting symptoms of the stomach. 2. Gastrointestinal dysfunction: avoid eating stimulating food, such as alcohol, coffee, chili peppers, etc.; appropriate health exercise, etc.; can also be medication, under the guidance of a physician, such as mosapride, omeprazole and other drugs to promote gastrointestinal dynamics, inhibit excessive gastric acid secretion, in order to achieve the purpose of resolving the nausea of the stomach and want to vomit. 3. Indigestion: often manifested as epigastric pain, epigastric burning sensation, epigastric fullness, etc., may lead to nausea and vomiting. It is recommended to give drugs to inhibit gastric acid such as proton pump inhibitor omeprazole, etc., promote gastrointestinal power drugs such as mosapride, cinapride, etc., and promote digestion of drugs such as digestive enzyme tablets. Hangover the next day stomach nausea want to vomit there may be other reasons, such as discomfort symptoms, should promptly seek medical attention, under the guidance of the physician targeted treatment, to avoid delays in the condition.