This is our first attempt at hatching eggs. One of the chicks had a very hard time hatching and needed my help. The membrane had started to harden and so I sprayed it a number of times with water and very gently loosened the membrane with a tooth pick. I did this over a three hour stretch and then left it alone to continue hatching. Over the course of the day it has been getting stronger, eating and drinking, but still is all crusty and dirty. I just picked it up and saw that its bum is all coated with harded poop. Is there anything I can do to loosen it and clean it off or should I leave it alone? Any other suggestions?