I had a couple of roosters who had frostbite on combs, and it did not affect them in any way. The rounded off comb is not a very cosmetic, but it doesn’t affect their health usually.My pea comb rooster didn’t have any problems. So, the moral is, if you love large combed chickens, living in the cold north may not be a good thing. Some chickens will get weepy hugely swollen comb s or wattles, and temporarily, they may not feel well or eat and drink enough.