About a year back someone had this happen to their ball on this forum, that was pretty much the advice given to him.
These things happen. You know how snakes absorb yolk through their stomachs in the egg? Well one of my two snakes ended up bleeding out of that hole after one of her sheds way back when. It was a tiny amount and I just threw neosporin on it for a few days and it healed over fine.
Neosporin and liquid bandage (when you have eggs) are possibly the 2 greatest aids to any Herp owner.