Knee pain may be caused by meniscus injury, ligament injury, knee joint effusion and so on. Food does not cure the disease and has no obvious effect on knee pain relief. It is recommended to take oral medication or physical therapy such as acupuncture and heat packs under the guidance of a doctor. Oral western medicine, the use of non-steroidal anti-inflammatory drugs such as ibuprofen, celecoxib and other anti-inflammatory analgesic. Acupuncture can also be given to relieve pain symptoms. In daily life, it is recommended to take more bed rest, avoid standing for a long time, and at the same time can be given hot water bags, hot omelette for local hot compresses to relieve pain. The above treatments should be operated by a professional doctor, and should not be operated by yourself to avoid risks. If the condition is serious, it is recommended to consult a doctor in time to avoid delaying the condition.