Walking for a long time knee pain, mainly for two reasons: 1, the existence of osteoarthritis, is the knee joint cartilage degeneration, bone proliferation and calcification, long after the formation of aseptic inflammation foci. 2, the soft tissues around the knee joint has a slight strain, but did not return to normal, the formation of the elasticity of the surrounding tissues as well as the toughness of the decline in the formation of excessive activity after the formation of the tugging The pain will appear again. After this situation, we must let the knee joint fully rest, can not walk too much and is the case of strenuous exercise, and the knee joint should be elevated, higher than the level of the heart position, can help the inflammatory edema subside, reduce the sense of pain. In addition, oral blood activation and elimination of blood stasis, swelling and pain Chinese patent medicines, such as blood circulation capsule to increase blood circulation; oral non-steroidal anti-inflammatory painkillers, such as nimesulide, ibuprofen, etc., to reduce local inflammation and reduce pain. And be sure to pay attention to the knee joint to avoid cold, leading to the accumulation of inflammatory metabolites, resulting in the aggravation of the symptoms of pain.