My flock of 11 week old chicks has been introduced to my 4 adult hens for about 3 weeks now. Today I went out to the run to find my favorite chick running for her life and honking. Her back end is all ripped up with two deep holes in it. I washed it and pored peroxide on it, then put wound cream on it. She's sleeping in my room tonight. Is there anything else I should do?