After a leg fracture occurs, the patient needs to stop activities, rest in bed, and elevate the lower limb to facilitate the venous return of the lower limb and help reduce swelling. Timely repositioning, bracing and plaster fixation can restore the alignment and force line of the fracture site, improve local blood circulation and maintain local stability, which is conducive to the absorption of local bleeding and reduce swelling, and can relieve pain. The fracture site should also be externally applied with blood-stasis activating, swelling and pain relieving cream, blood-activating and pain relieving cream or knot-eliminating cream, orally administered bone jointing drugs, such as Yunnan Baiyao, Shujian and blood-activating tablets, fracture contusion powder, etc., so that the fracture site can be healed as soon as possible and the local swelling will be gradually reduced.