Whether to apply hot or cold compresses after a fracture is swollen depends on the exact time period of the fracture. If the fracture is recent, it is important to use cold compresses and not hot compresses, as this can lead to increased bleeding and increased swelling. After 48 hours of applying cold compresses, hot compresses and microwave physiotherapy can be used to promote the reduction of tissue swelling and decrease oozing, as well as to allow for faster absorption of the oozing. If the swelling persists for several months after the fracture, the deep veins need to be checked for abnormal reflux. If venous thrombosis is ruled out, heat and microwave therapy can still be continued, and appropriate functional joint exercises can make the swelling subside quickly.