Re: cortisone injection questions
It's not unusual to do 2 injections to get the full effect, if you're going to get it. I'm also at my computer all day but that is not what caused my problems with my rotator cuff. I went through the minimally invasive course first - PT, 2 cortisone injections, but the problem grew worse so that I ended up having the surgery.
If your problem is just tendonitis, changing your arm position at the computer may help. I also bought a chair where the arms move up down and lateral and that helps as well. If I were you I would also continue your arm exercises, icing beforehand. In the long run, I think what we do for ourselves often turns out to be the most effective protocol.