I would definately try the blocks since it has started up just in the past few months. I would try lidocaine injections also in the shoulder area. I have only had one steroid shot for mine. Since you might have to have more then 3 injections to get it calmed down, it would be better.
I consider myself in remission. It's just the change in the weather that brings mine out and ours has been bouncing everywhere. It has been in the 70s the past week but it's going into the 30's Wed and I am not looking forward to that.
I still deal with the sweating, cold hands, cold feet, cold legs but the pain has been under control pretty good.
Go simple before it gets so out of control. I don't see the big success with some of the major things being done for people. They still have to take meds with whatever they have done and everything seems temporary, no matter what the treatment.
Good luck and I hope whatever you try works for you.

Ada