I have a 2 year old red star hen that was attacked by a dog yesterday (a dachshund). On first glace she seemed relatively ok though she wouldn't put any weight on 1 of her legs. Today when I checked on her I found a large patch of feathers missing on her back close to the tail. On further inspection the skin underneath was really badly torn up, no blood but definitely sticky like it is oozing (discovered the oozing at 11:00pm). She is currently still eating and drinking but hides in the coop most of the time right now. I'm worried about her what kind of treatment can I give her to help prevent infection?