I haven't had experience with this myself, but knew someone who did. It's was really acidic poop in that situation, and it was such that her son just kept oozing it all the time...not that he pooped and they could clean it off like with most babies. It just sorta kept coming out in tiny spurts instead of just big blast poops like what most kids do. I honestly don't remember what they had to do (sorry!), but I do remember that they tried a lot of special creams and such and eventually it got better....I just don't remember how

. And, he just grew out of pooping like that..
Hope someone else knows more about this..