my 13 months old baby boy is sometimes vomiting after having dinner like once every 15 days or one month. I usually give rice porridge as dinner to him around 7 pm daily. what might be d issue

A. it's just reflux.. Mix mint leaves juice in yogurt. Mix just pinch of black pepper ( it helps in the secretion of gastric juices).Mint is also used to combat stomach upset, nausea, vomiting, and colic in small children. Give it twice in a day.