my sebright roo got frostbite on his comb yet again toghnight. despite the fact that he was in a box with a heat lamp over it (i found him not in the box so he may have been out the whole night) and he had petroleum jelly on his comb and it didnt stop it from getting frostbite. it also didnt go below 6 last night!! what is wrong with him! how can i stop it! Please Help!