Health Encyclopedia
Search Clinical Content Search Patient Health Library
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A-Z Listings

Cold Injury First Aid

Being exposed to cold for a long time can damage body tissues. Frostbite is a freezing injury. Frostnip is a mild form of frostbite in which the skin is not yet frozen. The most common places affected by cold injury are the fingers, toes, cheeks, chin, ears, and nose. Ice put directly on the skin and left too long can also cause it. Frostbite symptoms include:

  • White, gray, or blue-white skin.

  • Cold, hard skin.

  • Loss of feeling in a body part.

  • Peeling skin.

  • Clear or blood-filled blisters.

  • Skin that turns black (severe frostbite).

Frostnip symptoms are milder and include pain, numbness, and pale skin color.

What to do for cold injury

If you notice any symptoms of frostbite:

  • Get to a hospital as soon as you can!

  • Protect the affected area from further injury by wrapping it in dry clothing, blankets, towels, or newspaper.

If you can't get to a hospital soon, or if symptoms are very mild, begin to rewarm the affected area. This can be done in two ways:

  • Warm water. Place the affected part in warm water at 98° to 102°F (37° to 39°C). Use water that feels warm but comfortable on unaffected skin.

  • Body heat. Hold the affected part under an armpit or in a warm hand.

To prevent making the injury worse:

  • Don't rewarm the affected part if there's a chance of it refreezing before getting to a hospital. Refreezing leads to greater damage.

  • Don't rub the affected part with hands, snow, or anything else. Friction increases damage to the tissues.

  • Don't use a stove, radiator, open fire, or heating pad. The skin can easily burn.

  • Don't smoke or drink alcohol. These affect blood vessels and circulation to the damaged area.

  • Move to a warm environment. Splint or pad the affected area to minimize injury during the move.

  • Don't walk on frostbitten feet. This can increase the damage.

As soon as possible, go to a hospital to be checked. Frostbite often causes dead areas of skin and tissue that may need surgery for removal and to prevent infection.

Preventing cold injury

To prevent tissue damage from the cold:

  • Wear enough layers to keep you warm. Cover exposed body parts to protect them from cold weather.

  • Eat enough food when you are out in the cold. Getting enough nutrition is important to help your body produce heat.

  • Don't drink alcohol. Don't smoke. Either of these can make the skin more sensitive to cold.

  • Don't get wet.

  • Carry emergency supplies when you are out in the elements.

  • If you use an ice pack for other reasons, wrap it in a thin towel so that the pack is not directly touching the skin. Use the ice pack no more than 20 minutes every 1 to 2 hours.

Online Medical Reviewer: Daphne Pierce-Smith RN MSN
Online Medical Reviewer: Rajadurai Samnishanth Researcher
Online Medical Reviewer: Ronald Karlin MD
Date Last Reviewed: 6/1/2025
© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
Powered by Krames by WebMD Ignite

These resources and their content are provided by a third party for informational purposes and do not necessarily reflect the values and positions of Ascension, its ministries, or its subsidiaries.

About StayWell | Terms of Use | Privacy Policy | Disclaimer

The Services may integrate with Third-Party Apps or contain third-party content or provide links to third-party websites. For example, the Services may integrate with Third-Party App providers to provide you with information. You authorize Ascension to transmit information about You to and receive information about You from applicable third parties.
You agree that Ascension is not responsible for Third-Party Apps, third-party content or third-party websites, and does not make any endorsements, representations or warranties regarding the same. Your use thereof is at Your own risk and subject to the third party’s terms and conditions, as applicable. By using a Third-Party App or third-party content or websites, You agree to the applicable third party’s terms and conditions, even if Ascension does not present them to You at the time of Your use.