<prompt> For frost-bite rewarming, the temperature should be:20? C25? C37? C42? C  <response>: For frost-bite rewarming, the temperature should be: 40-44 degree C Gently rewarm frostbitten areas. Soak the frostbitten areas in warm water -- 104-111 degree F 40-44 DEGREE C. If a thermometer isnt available, test the water by placing an uninjured hand or elbow in it -- it should feel very warm -- not hot. Rewarming takes about 30 minutes. Stop the soaking when the skin becomes its normal colour or loses its numbness. 