i suggest you to use Magnetic Bracelets. Why people should considering using magnets for rheumatoid arthritis?
1. Magnet with a larger surface area will produce a larger magnetic field and be able to penetrate into the deepest parts of your tissues right to the point of pain.
2. It help to stimulate and increase blood flow around the body which would result in a minimal reduction to pain in other areas of the body away from the arm.
3. Placing a magnet onto an area that has been damaged will increases circulation, blood flow and start begin of new cell growth to repair damage.
More info here, http://how-to-use-magnetic-bracelet.blogspot.com/