Acid reflux

Roxann

my 3 week old has acid reflux the doctor told me put cereal in his milk to help it has been helping but he hasn't pooped in 3 days ..... he has been very gassy so i do believe that he has to poop but I think the cereal made him constipated what can I do to help him ?????

& I also wanted to know has anybody ever been told to give there baby cereal?