I have 6 Rhode Island Reds that are around 3 months old and one day i come out to a chicken missing all the feathers on its back and under its wings, but its also was missing feathers on it right leg. The chicken suffered a severe pecking. She is not walking one the leg and is curling the foot. I have had her at home in a large dog crate and it doesn't seem to be getting much better after a week now but the feathers are growing back. I was wondering what i should do now or what i could try to make her better.