Other than the advice you've gotten (homeopathics, prune juice, etc) I recommend looking at the psychological side of this issue. Ok, no I'm not crazy, i just know that pooing is an embarassing issue for most little kids - they hold back because of fear of it hurting, and just the embarassment. I recommend getting toddler books about poo (like everybody poops) and letting your child see you have a hard time with bm (fake it even) It helps them feel normal. Then,...