my child is consistently vomiting since 10days.i visited the doctor he said his spincter is not developed. what should I do

A. This is normal don't worry, Spitting up is normal and completely harmless for most infants. When the spitting up or vomiting becomes too frequent, your child may have Gastroesophageal Reflux (GER). This reflux is a result of an immature digestive system and the poor closure of the valve (ring of muscle) at the upper end of the stomach.