Hi, our son is just 10 weeks old and our pedi told us to try mixing 1/2 ounce of water with 1/2 ounce of prune juice. It works wonders!!! Within an hour or two it usually cleans him right out! Otherwise, we were advised to use pediatric suppositories-- but to only use half. I agree the smell is horrible! It smells like rotten eggs. Poor babies!! Poor us!

Anyway hope that helps! Good luck!