Vomiting and diarrhea stomach upset is likely to be dietary impurity, acute gastroenteritis or chronic gastritis, can be relieved by oral bifidobacteria, loperamide, omeprazole, metronidazole and other drugs or diet control. 1. Dietary impurity: If the diet is not appropriate, eat a lot of stimulating food, may stimulate the mucosa of the gastrointestinal tract, resulting in increased secretion of gastric acid, and then the phenomenon of vomiting and diarrhea of the stomach, do not need to be overly concerned about it, usually pay attention to dietary rules, meat and vegetables reasonable combination. 2. Acute gastroenteritis: mainly due to bacterial, viral, parasitic infections caused by, can be manifested as vomiting and diarrhea stomach, dizziness, body fatigue, etc., can be orally Saccharomyces boulardii, bifidobacterium lactobacillus triplet tablets, or amoxicillin and other medications for treatment. 3. Chronic gastritis: mainly due to Helicobacter pylori infection, can be manifested as loss of appetite, vomiting and diarrhea stomach or weight loss, etc., can use omeprazole enteric-coated capsules, lansoprazole tablets, amoxicillin, metronidazole, bismuth pectin, and other drugs for joint treatment. As each patient’s physical condition is different, the corresponding treatment plan is also different, it is recommended to go to the hospital in a timely manner, after clarifying the cause of the disease, under the guidance of professional doctors for standardized treatment.