Yes i would definately do what Onyx said.

My DS2 has a bit of a sensitive belly to certain things like sour cream, i swear i will never give that to him again LOL We had it with nachos once and he pucked everywhere and then a friend had made her young boy beef stroganoff (sp?) i was a bit funny about it cos i know it has a small amount of sour cream in it and sure thing about 3 hours later he sprayed the cot and carpet with puke. Sometimes he will just puke for no reason it is just his belly saying no and i don't ever force him to eat anything.