What can i do to relieve chronic wrist tendonitis?

Splint: Chronic tendinitis can be tough to resolve. Wear a "cock up" splint which will allow the area some support. Take nsaids. I two weeks of this does not help seeing your doctor would be advised. Also, gentle daily stretching can help.

Bracing: A wrist brave and antiinflammatories are first line treatment for this condition.

How chronic?: For some, chronic occurrs within a few weeks of having a problem. In reality, a chronic condition must be constantly present for at least 6 months. I assume that you have already tried ice, anti-inflammatory medications, splints/braces, and oral/injectable steroids for your chronic condition. If all of the above has failed to relieve your symptoms, you need to see a board certified orthopaedic dr.