There is no fast way to reduce the swelling of the foot when it is hit by a heavy object, and the commonly used methods are general treatment, physical therapy, medication, surgery, and so on. 1. General treatment: to brake rest, rest will be the lower limbs elevated, is conducive to swelling. 2. Physical therapy: within 72 hours, you can use ice wrapped in a towel or gauze outside the swollen parts, to 15 minutes / time is appropriate, generally 0.5 ~ 1 hour interval for the second time, do not continuity of the ice without interval, more than 72 hours after the use of warm water bubbles or local baking lamps for the way of hot compresses, to promote the reduction of swelling. 3. Medication: If the outer epidermis is not yet broken, you only need to use medicines to activate blood circulation and eliminate blood stasis to reduce swelling, such as Yunnan Baiyao and safflower oil. If the outer epidermis is broken, you need to treat the wound in time and take non-steroidal anti-inflammatory drugs to reduce inflammation and pain, such as ibuprofen and so on. 4. Surgical treatment: If the injury is judged to be a simple skin sprain with skin bruising, an elastic bandage can be used for layer-by-layer pressure and proper fixation to produce a resting effect. If the sprain is more serious at that time, there is a ringing sound or there is an avulsion fracture after taking pictures, MRI shows that there is a ligament tear, at this time, try to use a brace or plaster immobilization, should be evaluated by a doctor to decide whether surgery is needed. If the foot is swollen by a heavy object and the symptoms do not improve within a certain period of time, it is recommended to go to the hospital in a timely manner and follow the doctor’s instructions to standardize the treatment.