Infants have an underdeveloped pancreatic valve with a horizontal stomach and a small gastric capacity, and food is easily refluxed. It is unlikely to solve the problem completely, but we can only find ways to relieve the child’s vomiting: 1. Avoid feeding the child when he or she is particularly hungry, and avoid violent crying that causes a lot of air inhalation and leads to vomiting; 2. Keep a happy mood during the feeding process, and the milk will be eaten more smoothly; 3. 4. After the child eats milk, you can extend the time of holding the child upright and give him more burps to avoid vomiting. 5. Eating milk lying down is also likely to cause vomiting in children. It is unlikely that vomiting can be completely solved, but through these methods you can try to relieve the symptoms. It is necessary to pay attention to vomiting accompanied by slow weight gain, poor spirit, abdominal distension, fever, crying and blood in the stool, etc. If the condition is considered to be digestive system or other diseases, parents are advised to take the baby to the hospital as soon as possible.