What are common side effects of frostbite? How can I treat it?

Severe. Some of the more severe side effects may include loss of toes, digits etc. You should seek immediate medical attention.
FROSTBITE. Frostbite is the sharp, painful sensations that result from the freezing & thawing of the skin. It is a severe cold injury. The areas of the body most vulnerable to the effects of frostbite are the feet & toes, the tip of the nose, the rims & lobes of the ears, & the tips of the fingers. If you develop frostbite, see your doctor at once. Do not treat it with ice, ice water, or snow.