Frostbite In desperate need of advice!

[aart]

I feel horrible that I can't help him as much as I wish I could!

It's hard not to do anything, but it's best and he'll likely be fine.
It will take several months for it to heal and he'll lose a good part of that comb.
The picture progression I have in the link might help you understand.

 

[Eggcessive]

With the temps that low, it is still hard to prevent frostbite in combs that large. It should heal eventually, and his comb will be more rounded off. Try to prevent direct drafts, but still have some room overhead the roost for air circulation. Do you have ventilation for the moisture from breathing and dampness inside the coop to flow outside? The need a little headroom, so they are not hitting the coop roof as well. Vaseline or any other cream or ointment can freeze, and that is not a prevention for frostbite. I hope that your rooster recovers. If you remember, could you post a picture of his comb while he heals, and after it has healed? That can be helpful to show others how it looks. This article is very good except for the passing mention of petroleum jelly near the end:
https://poultry.extension.org/articles/poultry-health/frostbite-in-chickens/

 

[LaFleche]

While living in very cold climate, keeping only breeds with rose combs or pea combs will help avoid frostbite in big combs and wattles.

Many years ago, after a very nasty winter with long periods of minus 29°Celsius with strong winds, I sold off all my brown Leghorns and other breeds with similar thin and overly big and floppy combs as there was no way to prevent the damage.

 

[Littledarlingfarm]

I'm in BC Canada, we got to -33 which in the town I'm in isn't common

I’m in Northern BC too! One of my boys also got frostbite from the recent cold chill, it’s hard when it gets this cold!