new...with a question about poop

[Guest guest]

Hello! My 5 year old autistic son is having a poop problem (what a

shocker - right). He has constant yeast issues and is on Diflucan and

that keeps it under control. I am very familiar with what yeasty poop

looks, smells like, etc. But, he's been having this other kind of

poop that has me puzzled. It is pretty loose, brown, smells kind of

acidic and it makes his bum raw. Even makes it bleed if he has enough

of these in a day, which when this happens (every so often) he will

have 4-6 in a day. It's not a raised rash, like he gets with yeast

and it doesn't itch, just hurts.

Is this viral or bacterial? Any guesses?

Thanks so much!!