流言：冬天来临，很多人都被寒冷的天气冻伤，民间传说有一种土方法：冻伤后用雪水搓洗，就能能治好冻伤，这是真的吗？真相：用雪水搓洗冻伤处的“土方法”是不科学的，会加重组织损伤。冻伤是低温寒冷导致的损伤，温度越低、局部越潮湿、风力越大，损伤越重。冻伤病人早期会感觉疼痛发麻、肿胀，严重的会起大水疱，甚至发黑坏死。如发现冻伤，要尽快脱离寒冷环境。早期最紧急的治疗是快速复温，一般可用40至42℃的温水，把冻伤部位如手部泡在温水中半小时左右，直到手发红、变软、湿润为止。如果肢体冻伤，要避免受压，同时注意抬高以减轻水肿。如出现红肿、疼痛加重，或出现水疱、血泡、肤色青紫等症状，需及时就医。寒冷天气里要注意保护好耳、鼻、手、足等末梢部位，同时避免在寒冷环境中暴露时间过长。潮湿的条件下更容易导致组织冻伤，因此，运动出汗后要及时更换衣物。
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