Hi Valerie,
Yes, there is a mix of English and American on this site, some great people here. I'm American too. It's a really fantastic fourm. Some wonderful ladies here.
I had three Cortizone shots, one in the doctor's office (early on), two more under anestheisa guided by xray. (Had an allergic reaction to the dye used in the injection-iodine.) The Cortizone helps numb it a little for about a week. Note I said numb, be careful not to move in a way that you might injur yourself further.) The doctor who administered my final injecitons last week, told me they really don't know how to treat Frozen Shoulder and really there is nothing much you can do. We have to wait it out.
I went to therapy physical for 5 months. It hurt like heck, doctor said it made it worse. So I do VERY CAREFUL excercises at home to keep shoulders moving, but we are all different. I am a Diabetic and so the scar tissue is even more dense I am told. Essentially, for me Frozen Shoulder is a Diabetic complication. I do try to walk as much as possible (on my good days and most days I force myself). Three miles a day is my goal for myself. It seems to help me when I can do it. This can become frustrating as heck, so some physical excericse is key for me at least.
Re: inflammation: I have drunk gallons of: tumeric and ginger (fresh and slowly cooked, uncooked), cherry pills, tart cherry juice, bromelain, large amounts of green tea for months, taken three or four different anti-inflammatory pills and really does nothing.
unfortunately, you have to wait it out. I think the unsweetened cherry tart cherry juice helps just a bit with inflamation, I do sip on that all day.
Hot baths in epsom salts with a towl dipped in the hot water and draped over my shoulder is pretty much the only pain relief I have. Try it if you can tolerate heat yet.
Have had my Diabetic Frozen Shoulder since August of 2015. Surgery is probably next.
Hope you feel better soon. Welcome. (This forum is very helpful. Keeps us all sane.)