Frostbite is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale. Frostbite is most common on the fingers, toes, nose, ears, cheeks and chin. Exposed skin in cold, windy weather is most vulnerable to frostbite, but frostbite can occur on skin covered by gloves or other clothing.
Frostnip is a milder form of cold injury that doesn't cause permanent skin damage. You can treat frostnip with first-aid measures, including rewarming the affected skin. All other frostbite requires medical attention because it can damage skin, tissues, muscle and bones. Possible complications of severe frostbite include infection and nerve damage.
- At first, cold skin and a prickling feeling
- Red, white, bluish-white or grayish-yellow skin
- Hard or waxy-looking skin
- Clumsiness due to joint and muscle stiffness
- Blistering after rewarming, in severe cases
Frostbite is most common on the fingers, toes, nose, ears, cheeks and chin. Because of skin numbness, you may not realize you have frostbite until someone else points it out.
Seek medical attention for frostbite if you experience:
- Signs and symptoms of superficial or deep frostbite
- Increased pain, swelling, redness or discharge in the area that was frostbitten
- New, unexplained symptoms
Source: Mayo Clinic