After the bone fracture, due to the bleeding of the bones in the fractured area as well as soft tissue inflammatory exudation, there will be localized swelling, usually ice or cold compresses immediately after the injury to promote vascular contraction, which can effectively reduce the swelling after the injury. At the same time, the affected area should be braked, do not move the fracture site, if necessary, you can use a brace or plaster for immobilization, which can stabilize the fracture site, prevent bleeding from worsening, and inhibit the effect of swelling. At the same time, the limb should be elevated, for example, the upper limb can use a triangle scarf to hang the arm in front of the chest, and the lower limb puts the foot on the pillow. At the same time, the use of drugs to reduce swelling can also be combined with physical therapy, such as laser. Hot compresses 48 hours after the injury can help improve blood circulation and promote swelling, while the distal end of the limb can be moved, such as moving the toes and fingers, to promote venous and lymphatic reflux through muscle compression and help reduce swelling.