Nausea and vomiting in the middle of the night: First, it is possible that the patient’s dinner the day before, eating too much, the food is not digested in time, so it will be nausea and vomiting. Second, if it is a female patient, need to be alert to whether it is the early pregnancy reaction when pregnant, suggest that the patient go to the hospital to check the progesterone, do not self-medication to solve the problem. Third, there may also be gastrointestinal flu, the main symptoms of nausea, vomiting, diarrhea, etc., the patient can use antiviral drugs, such as Banlangen granules or morinoguanidine and so on. Fourth, there may be gastrointestinal dysfunction, patients can take oral inhibition of gastric acid secretion and protection of the gastric mucosa of the drug, common is omeprazole and Daxi and so on. It is recommended that patients usually pay attention to light diet, regular meals, do not eat spicy, stimulating food, do not overeat, can clockwise massage abdomen to promote gastrointestinal motility.