@grrranny
You are right...I forgot about that! I have elevated sugar too, and I do have some side effects for a few days after every injection.
Relief really varies...anywhere from 1-6 months. They don't last as long in the winter, or if I over work my shoulder.
I'm about at the end of my rope though, and will have to have surgury soon(ish). Honestly, after having rotator cuff surgury 6 years ago on the other shoulder, I'm nervous, but the reality is a replacement shouldn't be much, if any, worse.