I have never had one, but I would never have them on any kind of a regular basis. The problem I have with them is that they make the pain go away and then you can't feel the damage you are doing or know how bad it would be hurting without the cortisone shot...so you continue along without addressing the cause and end up worse in the end. I think if it were me, I would seek out alternative methods for dealing with arthritis. Acupuncture, maybe (Meri?) Diet changes? Vitamin and mineral supplementation?