My son has been spitting up since pretty much 2 weeks of age. He started out on similac advanced then isomil soy, then gentlease then nutramigan [spelling?] it just seemed to be getting worse. on my own, i decided to put him back on similac advanced at about 6 weeks old and he stopped spitting up completely until about 2 1/2 months old. That when his spitting up started up AGAIN! the pediatrician put him on zantac drops which didnt help. after, he was taking 2 teaspoons of maalox a day. helped the first night but again started spitting up. ive taken him to a pediatric gastro and they said hes not allergic to formula and there really isnt anything they can do. supposedly from 3-6 month tons of babies spit up. he spits up about 2 oz. in between feeding. he eats about 5-6 oz every 4 hrs. sometimes a bit less. i thicken the bottle with 2 teaspoons of cereal an ounce, burp him and sit him upright for about 30-45 minutes. now, he is on good start formula but even still hes spitting up. HELP!