I type this 10 hrs post surgery to correct the same problem. 10 months on and off tendonitis pain in my bow arm. I did the Motrin and hope routine prescribed by my family Dr. That didnt work. I had 1 injection last fall, with temporary relief of pain. I had a MRI done as well, which showed partial tear of the common extensor tendon. Thinking thw worst, I did some more digging.
I finally searced out a sports medicine elbow specialist. I decided on the Sports Medicine Dept through DMC - the same pracice used by the Detroit Tigers, Red wings and Pistons.
The Doc who I saw eplained tendonitis is actually pain caused by small tears in the tendon. The procdeure he did removes degenerated tendon tissue, and repairs the tendon, as well as a fewthings to improve blood flow to the tendon.
Surgery went well, Im not in any pain. I will be in a sling for 10 days, and a wrist immobolizer.
Looking at 6-8 weeks recovery, then PT.
If its chronic, you are likely looking at something along the same lines.
PM if me if you want and I'd be happy to discuss it further with you on the phone. I have a seaon long elk hunt planned for this fall, and while this will set me back in my conditioning and shooting, Doc said I should be good to go by then for sure. As long as I dont rush the recovery process.