How To Treat Degenerative Arthritis In Neck?

I have degenerative arthritis in the neck. where c5 and c6 are. from the ex-rays my doctor showed me where the bone on the left side of c5 and c6 had deterorated and is causing the tissue between them to blugle out and results in tha5t tissue pushing against the nerves,what kind of exercises can I do to strenghten that area. the pain is extremely bad and when I turn my head to the left my left arm goes to sleep