Dear Jane. I have extremely severe arthritis, for the last 40 years.Joint replacements are great, but there are various reasons why they can't do that to me. I find that the only thing that keeps it at bay is daily-twice daily excercise. Walk a measured amount no matter what the pain. Don't stop for any reason. It must be regular, twice daily, and must increase over time. If you miss a day you will feel it. No excuses allowed for not walking. Doctors are a dead loss re drug treatment-nothing works, except opiate pain relief. But remember, you must never sit still for more than an hour at a time. I know what I've written looks banal, but it is the conclusion drawn from long and bitter experience.