Nausea and vomiting on the second day after drinking alcohol may be caused by alcohol stimulation, gastrointestinal diseases, etc., which can be relieved by diet and medication, while avoiding alcohol consumption. 1. Alcohol stimulation: When patients drink alcohol, the gastrointestinal mucosa will be stimulated by alcohol, resulting in nausea, vomiting and other symptoms, at this time the patient can be relieved through diet, the patient can drink some honey water or warm water, milk and so on, you can consume some light and easy to digest food, such as: rice porridge, noodles, etc., which can relieve the symptoms to a certain extent. Can take omeprazole, aluminum sulfate to protect the gastric mucosa. 2. Gastrointestinal diseases: If the patient has gastrointestinal diseases, such as: chronic gastritis, gastric ulcer and other diseases, in the stimulation of alcohol, can also lead to nausea, vomiting, abdominal pain and other symptoms, the patient can use to protect the gastrointestinal mucosa of the drugs, such as: bismuth pectin, bismuth potassium citrate, aluminum thioglycollate and other medications, if accompanied by Helicobacter pylori infection, you can choose to Amoxicillin + Clarithromycin + bismuth + Omeprazole anti-infective treatment. None of the above drugs can be used without authorization, and it is best to use them under the guidance of a doctor; if a patient vomits and nausea the next day after drinking alcohol, it is best to go to the hospital in time for a checkup, and if gastrointestinal disorders are present, they can be treated according to the doctor’s advice.