Hi Meadowblue
I am currently coming out of the other side of a Frozen Shoulder on my left side (had the same on my right side 2 years ago).
A couple of weeks ago I had an ultrasound guided cortisone injection. It was a little uncomfortable but the results so far do outweigh any discomfort.
The injection has given me the increased (although not complete) freedom of movement so that I can do my physio exercises and stretch it out a bit more. And, the most wonderful thing, is that I can get a decent nights sleep now too!
I would definitely recommend the ultrasound guided injection.
Incidentally, I did have keyhole surgery on my right side, that was due to a bony growth which was impingeing the shoulder. The surgery worked a treat but I wish the consultant (different man to the one I have now) had tried the UGI instead. That might have helped, who knows?
All the best, I hope you get it sorted soon as I know how miserable it can be.