Stomach pain and vomiting may be caused by overeating, gastroenteritis, ureteral stones, etc. It is necessary to take appropriate approaches to different causes, and there is no such thing as the fastest way to relieve. You can rub the abdomen, use domperidone to accelerate gastric emptying, use levofloxacin and metoclopramide to relieve inflammatory reaction, suppress vomiting, and carry out extracorporeal shock wave lithotripsy and other treatments. 1. Excessive eating and drinking: overeating, eating too much cold and irritating food, increased stomach contents stimulate gastric distension, stomach pain will occur, gastric reflux will occur vomiting. You can perform gentle abdominal massage to promote gastrointestinal peristalsis and help the digestion of food. You can also use domperidone, mosapride, etc. to promote gastrointestinal peristalsis and accelerate gastric emptying. 2. Gastroenteritis: Bacterial infection caused by unhygienic diet can cause acute gastroenteritis, inflammation stimulates the mucosa of the gastrointestinal tract will appear pain, vomiting. You can use levofloxacin and norfloxacin to inhibit the growth of bacteria and relieve the inflammatory reaction. You can also use metoclopramide to inhibit vomiting, and pivacurium bromide to relieve smooth muscle spasm and reduce abdominal pain. 3. Ureteral stones: Blockage of stones at the end of the ureter causes spasm of the ureter, and pulling the nerves of the gastrointestinal tract may cause stomach pain and vomiting. You can put a stent in the ureter and have extracorporeal shock wave lithotripsy to help expel the stone. Stomach pain and vomiting may also be caused by acute appendicitis, intestinal obstruction and other reasons, and should be promptly consulted under the guidance of the doctor, combined with the relevant symptoms and examination, to identify the causes and carry out reasonable treatment, so as to avoid delaying the condition.