blog of herbs and health has a great post on how to give someone (or yourself!) a forearm massage. Releasing muscle tension is key to curing almost any kind of chronic wrist pain, so I recommend you learn how it's done. If you can't afford a private massage, search for massage schools in your local area. They usually offer discounted student massages which can be just as good as the professional variety.
For further self-massage instruction, check out this video: