Swelling of the knee can be caused by over-exercise or due to degenerative conditions of the knee joint. Treatment includes physical therapy and medication. 1. Excessive exercise: after a large amount of physical exercise, knee swelling can be relieved by applying ice packs to alleviate the discomfort of the knee joint; during the rest period, hot compresses, deep microwave, local massage and other methods can be taken to improve the symptoms of swelling of the soft tissues around the knee joint. 2. Degenerative disease of the knee joint: in the above physical therapy at the same time, you can also carry out rehabilitation training of the knee joint, repair the soft tissues around the joints; and combined with the auxiliary treatment of drugs, such as oral meloxicam, celecoxib and other drugs to reduce the inflammatory reaction in the joints; oral dextrose, chondroitin sulfate, and other drugs to nourish the cartilage of the joints. If the symptoms of knee swelling are not relieved, or accompanied by other symptoms, the patient should go to the hospital in a timely manner, to identify the cause and then give targeted treatment. The above medications should be used under the guidance of a doctor, avoid self-medication.