I've suffered through a few bouts of tendonitis, both shoulder and elbow (not simultaneously).

My Doc explained it like this:
*We injure (inflame) the tissue somehow,
*Eventually the inflamation progresses to the point that we notice it (our individual pain threshold),
*We treat the inflamation..Ibuprofin in my case...for a prescribed period of time,
*Eventually the Ibuprofin stops the progression of the inflamation and the pain decreases, and then goes away completely.
*He insisted I continue to treat the inflamation for the prescribed time period as the injury will not be resolved at the point where the pain ceases.
* Preventitive activities then follow.

I chose the Ibuprofin route. It generally takes a couple of weeks and I'm good to go.

It's right for me though it's not the only route to take, for sure. Here's hoping that you are comfortable and on the mend soon.