When an infant causes vomiting, the cause of the vomiting should be clarified and suitable treatment should be given according to the cause. When feeding the baby, you should pay attention to the feeding posture, don’t let the child eat too much, if you feed him formula, don’t let him eat too fast, don’t eat allergic milk sources, burp to make sure the gas is expelled, don’t wear clothes too tight, pressure can also produce vomiting, and also the mother should not eat stimulating food. If the vomiting is caused by a cough, let the child drink more water, eat less food, and take cough medicine. If the vomiting is caused by poor digestion, give the child an abdominal massage and take some drugs to help digestion, such as henbane and food mother, etc. You can also use the drug domperidone oral solution to promote gastric motility. If the vomiting and diarrhea are caused by infection, be careful not to dehydrate the child and apply anti-infective medications appropriately. If the vomiting is more than 5 times, you should go to the hospital to find out the cause to avoid the child’s reaction caused by more serious diseases, which may delay the treatment, such as meningitis, appendicitis, food poisoning, drug poisoning, intestinal obstruction, etc.