Hi, my rooster got some frostbite over the winter but that has healed up / fallen off. Now he has some strange looking spots on both sides of his comb. He's one year old and is acting normally, no other symptoms that I can detect. I've tried Bag Balm (once) but that didn't seem to help, and actually may have made it a little worse. Can anyone tell me what this might be and how to treat it?