https://www.backyardchickens.com/t/846610/any-suggestions-on-how-to-solve-our-frostbite-problem
You could try this thread It has been up on the home page so you may have already read through it.
Im having a problem with 2 of my roosters also a BCM his comb and wattles and my CLs comb look horrible.
My foundation roos already lost their points. Sadly the lil round nubs a lil purple now . One of my crosses(riw) got the combs also. But my cross to cochin s havent got any. All my rose comb birds are fine. :-(