I just went out to feed and check all of my chickens. I found my silkie rooster with a black hard comb. I check on my chickens everyday but because his comb was very dark to begin with I never noticed any issues. His comb is virtually black anyway, but what drew my attention to it today was that it just looked "off". I picked him up and that is when I noticed that it is really hard on the top 1/3. His waddles and feet all look good. But the comb I am concerned with. I have been applying vaseline to try to prevent frostbite, and the coops I keep as dry and well ventilated as I can. At this point unfortunately it appears that my efforts have failed. I want to know if there is anything that I can do to save his comb or will it end up falling off? Or even more frightening, do I have to worry about infection killing him?!!!