Quick Answer
Rewarm frostbitten extremities by immersing them in warm water (not hot) between 104°F and 107°F (40°C to 42°C) for 20 to 40 minutes, or use body heat, and avoid direct heat sources like stoves or fireplaces.
Initial Treatment
For frostbite, initial treatment focuses on rapid rewarming, but it’s essential to avoid direct heat sources like stoves or fireplaces, as they can cause further damage. Wrap the affected area in a dry, sterile dressing, and remove any constricting items like jewelry or tight clothing. Immersion in warm water (not hot) is the preferred rewarming method, with a temperature range of 104°F to 107°F (40°C to 42°C).
Rewarming Techniques
If warm water immersion is not feasible, use body heat to rewarm the affected area. This can be achieved by placing the affected limb in the armpit or against the abdomen. Another technique is to use a warm compress, changing it frequently to maintain a consistent temperature. A warm compress can be made by soaking a cloth in warm water, wringing it out, and applying it to the affected area for 15 to 20 minutes.
Post-Rewarming Care
After rewarming, apply topical antibiotic ointment to the affected area to prevent infection. Cover the area with a sterile dressing and monitor for signs of infection, such as redness, swelling, or increased pain. If the affected area remains numb, it’s essential to continue monitoring for signs of reperfusion injury, which can occur when blood flow returns to the affected area.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.