I kept hearing this before the weather got nasty, and despite my best efforts, my biggest roo (with the biggest comb) managed to get a frostbitten tine or two on his magnificient comb a couple of days ago. This is an 18lb bird who does NOT care to be handled, though he's generally friendly. I also admit to being very skeptical by nature, and as a former pharmacy tech for 10 years, thought this was sort of a strange solution to the problem. So I've been doing some research. There's lots of anecdotal evidence about Vaseline, but when I finally tracked down actual research studies on it, it seems that the opposite can happen :/. That's not good! From a research based website, an article titled Prevention of Cold Injuries during Exercise Quote: 1. Lehmuskallio, E., H. Rintamaki, and H. Anttonen. Thermal effects of emollients on facial skin in the cold. Acta Derm. Venereol. 80:203-207, 2000. 2. Thorleifsson, A., and H. C. Wulf. Emollients and the response of facial skin to a cold environment. Br. J. Dermatol. 148:1149-1152, 2003. 3. Lehmuskallio, E. Emollients in the prevention of frostbite. Int. J. Circumpolar Health 59:122-130, 2000. I've got some antibiotic /cream/ on him now, because it's water based, not oil based. I hope it doesn't totally disfigure his pretty head...at least he's a breeder and not a show roo!