I cannot believe it, but it looks like 2 of the spikey, tiny ends of my bantam's small comb are yellowing. I believe I read somewhere on BYC that means frostbite. I am so upset this happened to her. I did not think it would happen as I had used lights and lots of ventilation (for daytime in small, draft-free coop). They sleep in the (cold) garage w/ a lamp, not too close, just to take some of the chill out of the air. Although, her spiny little comb has ends about the size of the small end of a flat toothpick, they are tiny and vulnerable. Can the blackening be prevented? I put Neosporin (w/o pain reliever) on, is there anything else I can do? Should I put Vaseline on top of the Neosporin? Why didn't she keep her head under her wing at night, don't all chickens do that? It's been in the 20's here, but I didn't expect frostbite without moisture build-up.