Apply Vaseline or Neosporine to the comb & waddles 2-3 times per week to prevent frostbite. Easiest to catch him for this after he goes to roost at night while he's sleepy.My big cornish cross is already having issues with his single comb too. My buddy cuts the combs off of the roosters, but I can't bring myself to do that. I like the look of that big ol' comb, and most importantly, that would HURT!!! I have to figure something out to help protect the combs. :/