One of my hens has a bloody comb. She is on the top of the pecking order so I am not sure how this happened. I'm worried because it is very cold here 28 degrees today and will it cause her to frostbite overnight if it doesn't scab over? None of the other girls seem to be bothering her but she keeps shaking her head and it flings blood around. I brought her in and put a little neosporin on it but it was still slightly bleeding at the time. Should I bring her in for the night? I don't heat the coop.