If the fracture is early, such as 24 hours before the fracture, hot compresses cannot be applied at this time, because within the first 24 hours, there is continuous bleeding, swelling and edema, so if hot compresses are applied, it will speed up the bleeding and cause more serious swelling and blistering, so it is not suitable or prohibited at this time. 48 hours later, or 24 hours later, the bleeding basically stops and blood clots will gradually form. When the bleeding basically stops, blood clots will gradually form, this time you can enter the hot compress, hot compress can play the role and effect of activating blood stasis, improving circulation, relaxing tendons, reducing edema, pay attention to the intensity and number of hot compresses, generally use infrared, microwave, salt bag hot compress, Chinese medicine fumigation can be, but be sure to control the temperature of the hot compress, generally do not exceed 40 ℃, so as to avoid burns and other Unnecessary accidents occur.