I would reccommend massage therapy, it is a great way to relax your muscles, as well as calm your mind. Just some benefits of massage are:
Increases flexibility of muscles
Relaxes and soothes the muscles
Increases blood circulation
With arthuritis the muscles surrounding the bone often become very tense, adding to pain. A massage should help release that muscle inflammation and pain, increase flexibility of the muscles surrounding the bone and relax and soothe the muscles too.