Some infants may spill milk or spit up after eating milk, so parents should burp them immediately after eating milk. Some babies swallow a lot of air too quickly and swallow a lot of milk, making their stomachs swollen and full. Parents need to hold the baby upright immediately after feeding and gently pat the back, and if necessary, pause in the middle of feeding to temporarily burp the baby and continue feeding after burping. If the baby is not burped in time, it may cause spitting up, choking and coughing, or even pneumonia due to accidental aspiration. Since choking can be life-threatening, parents need to take better care of their babies and turn their heads to the side as soon as vomiting occurs to avoid milk from entering the trachea and causing choking. Burp your baby for 10-20 minutes after feeding, and gently put him down afterwards to avoid shaking.