Enola,
I am also suffering with arthritis. I have it in my neck and shoulders. It is causing huge problems with my left arm. Right arm is not quite so bad.
The capsicum ointment is ok, and I make the heat pads myself. there are other creams like Deep Heat and things, they are good and warmth is great relief, I have a range of pain killers from my GP but to be honest I don;t think they do a lot. I do take supplements and vitamins for joints.
The restriction in movement is difficult to deal with, but as much as possible stay active. I also use wrist supports when I am working.
Good luck to you.