Superficial frostbite can develop rapidly in a cold wind. The skin turns whitish or mottled, is painful and feels firm to the touch. Warm the affected part against the body and go indoors at once. If you're walking, get to a warm shelter right away and call for help.
If your flesh feels hard and cold and the skin turns grayish blue or white, treat it as soon as possible. Warm the area with your hands until the circulation returns.
If feet are frostbitten, take off the shoe and sock and cover the foot with a linen pad if possible. Do not rub the skin, or apply any direct heat or pressure to it.
Fit padding between the fingers or toes and cover with a triangular bandage. Put the base of the bandage under the wrist of the hand or behind the heel of the foot and bring the point under and over the fingers, or the toes of the foot. Bring the two opposite points of the bandage over the third point and cross and tie at the ankle or wrist. Fasten firmly, but not so that circulation is slowed, with a knot. Fold the tip of the point over the knot and fasten. Raise the foot and keep it warm with a blanket or sleeping bag. Place blankets or a sleeping bag around the victim and feed him hot, sweet drinks.