A cure for much arthritis is possibly a Nutritarian Diet promoted by Dr. Joel Fuhrman which reduces inflammation and helps the body rebuild:
https://www.drfuhrman.com/blog/119/a-progressive-approach-to...
"The traditional treatment of rheumatoid arthritis revolves around medications which typically include steroids and chemotherapeutic agents such as methotrexate, Imuran®, Gold®, Plaquenil®, Arava® and Remicade®. These medications are considerably toxic and can result in serious disability.
My approach to treating rheumatoid arthritis differs in that it incorporates dietary modifications and nutritional supplements, avoiding the use of toxic drugs in the vast majority of cases. The recommendations are customized to the needs and response of each patient to treatment and involve more than just putting them on a special diet. However, in most cases, dramatic improvements and even complete recoveries occur.
In spite of well-conducted scientific investigations and the clinical experience of many physicians, this effective nutritional treatment of autoimmune disease is generally ignored. I have seen scores of patients with rheumatoid arthritis as well as lupus, fibromyalgia and connective tissue disease obtain complete recoveries through these natural interventions. Also, I have many patients who have made complete recoveries from allergies and asthma. Not every patient obtains a complete remission, but the majority is able to avoid the use of medication."
The big problem in our current society is that there is no substantial money to be made by big companies in promoting these sorts of cures.