Some mild knee arthritis can be cured by treatment for a period of time, which is difficult to determine, usually more than 3 weeks; some degenerative arthritis is irreversible even if the symptoms are mild and can be relieved by treatment. Most mild knee arthritis is caused by improper exercise, too much exercise, and cold joints, and manifests itself as pain in the knee joint, and in some cases, slight swelling. The main treatments are rest, avoiding strenuous exercise, strengthening the quadriceps muscles and so on. Non-steroidal anti-inflammatory drugs such as Celecoxib and blood circulation and pain relieving drugs such as Bone Strengthening Joint Pills can be applied, and usually the pain can be gradually relieved or return to normal in more than 3 weeks. Some arthritis triggered by degenerative changes is irreversible even if the symptoms are mild, and can be relieved by the above treatments to control the progress. So whether mild knee arthritis can be cured and how long it takes to be cured is based on the specific type of arthritis and its condition.