Frostbite Frostbite occurs when continued exposure to the cold causes ice crystals to form in the fluid in the cells of the skin and tissue. Both of these tend to decrease the blood flow to the skin, thus increasing susceptibility. In the earliest stages, the skin appears red. Pain is often painful. As Frostbite develops, the skin becomes white or grayish yellow and appears and feels waxy and firm.
Skin feels very cold and numb.
Blisters may form. Often victims are not aware of Frostbite until others notice the symptoms. Affected areas become blotchy red, swollen, and painful on re-warming. While outside, cover the frozen part with extra clothing or warm cloth. If the hand or fingers are frostbitten, put the hand under the armpit for warmth.