We've had a little pattern going over the last two weeks. Dd will go three or four days without pooping, so I give her a couple bites of prunes, and the next day she poops four times and gets a diaper rash. Then she goes another few days with no poop and the rash clears up. Prunes, then poop, then rash. I can't figure out if the rash is from the prunes or just from the fact that she spends an entire day pooping (and often does it during nap so I don't know how long she sits in it until I change her). This time I lathered on the Desitin to try to be proactive but she still got a rash. Is there something I can feed her other than prunes to help her to be more regular, and maybe help me figure out if she's reacting to them? Thanks so much!