Arthritis can be maintained and treated by the following methods: first, avoiding cold joints and joint strain, which can slow the progress of arthritis and reduce or relieve the symptoms of arthritis; second, early physical therapy, microwave physical therapy or far-infrared physical therapy, which is good for relieving the pain of arthritis and relieving the effusion caused by synovitis. Thirdly, oral medication can be administered, such as cartilage nourishing drugs, such as glucosamine hydrochloride, glucosamine sulfate, and osteopeptide tablets, as well as pain relieving drugs, such as meloxicam and celecoxib, and also Chinese medicines, such as tortoise astragalus bone granules or anti-bone growth tablets, for the treatment of meridians and pain relief; fourthly, injection of drugs into the joint cavity. The injection of sodium glass acid into the joint cavity for arthritis treatment is also very effective.