I use a ramekin with warm water and just soak the lil butt in it. My chicks don't seem to mind. Every minute or so I check to see if the poop is soft and if not I pinch it a little to encourage it to break up, then back to the ramekin. Once they're clean I dry them off and put a tiny dab of olive oil on their butt to prevent more pasty butt. Good luck with your chicks and your sick kiddo!With it being rock hard, do you have a recommendation for best way to clean?