Signs of frostbite include discoloration of the frozen area, pale or even blue skin, no pain or lots of pain. The pads of the paws, tail and tips of the ears are most susceptible.
If your pet has frostbite, bring them out of the cold. Spray the affected area with warm water. Lightly apply a warm compress to the area. Do not rub or apply pressure. Take your pet to your veterinarian immediately.