How to heal degenerative ostheoartritis?

Symptom relief. There's no way to get rid of osteoarthritis completely (unless you get a knee replacement). Things help with the pain and symptom control: tylenol, (acetaminophen) ibuprofen, daily exercise, physical therapy, supplements like glucosamine and chondroitin also could help (but don't get gouged with expensive "arthritis pills" - the other things i mentioned are cheap & can often work much better). Best of luck!
No healing. Medications, exercise, physical therapy, diet, weight loss, and surgery on a specific occassions can be used to treat degenerative arthritis. Supplements maybe helpful in certain patients but those vary from patient to patient. Thee are no cures for this type of arthritis.