Abdominal pain and vomiting may be caused by acute gastroenteritis, appendicitis, chronic gastritis, gastric ulcer, etc., which need to be given medication and surgical treatment according to their causes. 1. Acute gastroenteritis: if abdominal pain, vomiting severe, can be injected intramuscular scopolamine antispasmodic pain; intravenous potassium chloride, sodium chloride and other electrolyte replacement. If the bacterial infection, can be given norfloxacin, bifidobacterium montmorillonite and other drugs. 2. Appendicitis: abdominal pain and vomiting caused by appendicitis, the pain is usually in the right lower abdomen, appendectomy can be considered. 3. Chronic gastritis: abdominal pain and vomiting caused by inflammation and erosion of gastric mucosa can be treated with omeprazole, rabeprazole, magnesium aluminum carbonate chewable tablets and other medications. 4. Gastric ulcer: bismuth potassium citrate, pantoprazole and other drugs can be given. Abdominal pain and vomiting, it is recommended to go to the hospital in time to identify the cause of the disease, early treatment, so as to avoid delaying the condition. The medication should follow the doctor’s instructions.