If frost bite is in the later stages, gangrene may set in and cause all kinds of infections. Snow and ice can cause problems for the feet of the pet. Sometimes, they have snowballs in the fur surrounding their feet or they could have cut their feet on the ice. If these things have happened, it's a good idea to wash off the area and dry it thoroughly to help ease any discomfort the pet may have. Besides keeping the animal warm and clean, the pet owner may also have to change the eating habits of the pet during the winter.
Outdoor pets use calories to generate heat in the wintertime.
It's also a good idea to keep an eye on the water bowl for outdoor pets. Water freezes very quickly in cold weather.