Most of the swelling and bruising after a knee injury is caused by soft tissue injury around the knee joint. Reducing swelling and removing blood stasis is the term used in Chinese medicine, while Western medicine generally refers to removing swelling, and the ways of removing swelling include physical therapy and medication. 1. Physiotherapy: If the degree of injury is relatively mild, the symptoms of edema and bruising can be relieved by physiotherapy, such as braking and icing the affected limbs during the acute stage, and elevating the affected limbs to accelerate venous return. In the relief period, you can apply hot compresses and red light irradiation to accelerate the blood circulation around the joints and promote the discharge of metabolic products. 2. Medication: If the pain symptoms are obvious after the fall, you can take indomethacin, loxoprofen and other drugs to relieve pain. You can also take Mannitol, Dexamethasone and other drugs to reduce swelling quickly. All of the above medications should be used under the guidance of a doctor, avoid self-medication. The same disease, the patient’s physical condition is different, different stages of the disease, the treatment method is different, should be standardized treatment under the guidance of the doctor.