The most effective treatment for knee pain depends on which knee disorder the pain is caused by, and the treatment varies from knee disorder to knee disorder. For example, for a simple knee strain or injury, you can basically recover with rest and support for symptomatic treatment and recuperation. For synovitis of the knee, oral anti-inflammatory and analgesic medication, topical creams, local physical therapy, and hot compresses should be used. If there is a prolonged period of time, arthroscopic joint cleaning or synovectomy can be performed. In cases involving pain and dysfunction from meniscal damage to the knee, the most effective approach is to perform an arthroscopic examination and then repair or remove the meniscus depending on the damage. There is also osteoarthritis of the knee common in the elderly. If it has seriously affected daily walking and life, surface replacement of the knee is recommended for older patients.