I got Sassy out to clean her wounds and maybe put triple anti-bi ointment on her when I discovered that her injury is more serious than I thought. She's missing SKIN on the area on her tail and to the right rear. I can see muscle and even bits of fat. Can she be saved w/o vet help? Or is she suffering for nothing? She is eating/drinking/pooping, but hasn't laid an egg today. Might her vent be damaged?