I brought in two new hens from different farms and one nearly killed the other. I was checking on them often so in just a few hours one of them pecked a patch off most of the back of the other. All feathers are gone or broken off near the base. Her skin is--well, the only word for it is--raw hamburger. Plenty of blood--this is not just a flesh wound. The injured area extends from her tail all the way up even to the top of her wings. It is about three inches wide. I brought the injured one inside and put on a salve that is for humans. It is for burns and cuts but it's not an antibiotic. It's the only thing I had on hand last night when I discovered what had happened. Now she is attempting to clean her feathers--from all the spattered blood--and I'm sure she's ingesting some of that salve. I did not clean the wound off and I did not bandage it. She was in so much pain all I could do was get the salve on and I don't know how I could possibly bandage it. What should I do now? Is there a topical medication specific to chickens I should use? Should I try to bandage it somehow? Should I clean it off with soap/water to prevent infection or is it already too late for that? What about the quills broken off near the skin--should they be pulled or left alone? And, finally, what about the hen who did the attack? Does she need to go? I'm desperate for help--thanks for any advice you can give.