扭伤后48小时内如果采用热敷,会使血管扩张,局部出血,肿胀更严重。正确的方法是:扭伤后48小时内应冷敷,这可使血管收缩,减少局部出血、肿胀。冷敷方法是:在塑料袋内装入冰水或冰块放在扭伤部位,或将扭伤处直接浸在冰水中。如无冰水,也可用冷水,但需要频繁更换。在扭伤48小时后, Within 48 hours after sprains, if the heat is applied, the blood vessels will dilate, local bleeding and swelling will worsen. The correct method is: within 48 hours after spraining should be cold, which can make the blood vessels, reduce local bleeding, swelling. Cold method is: in the plastic bag filled with ice water or ice on the sprain, or the sprain directly immersed in ice water. If no ice water, cold water can also be used, but need frequent replacement. 48 hours after sprain,