Welcome at HCM.
I have read details of your query.
The adhesive capsulitis
or frozen shoulder
is one of the painful condition.I can understand your condition.Night pains,inability to elevate the shoulder are associated with it.
This condition can be treated by following methods-
-Range of motion exercises of shoulder & intake of good analgesics.
-Injection of corticosteroids
in shoulder joint.
-Manipulation of shoulder under relaxation effect of general anesthesia.
Manipulation is generally indicated in persons having severe pain & limitation of movements.
At start physiotherapy
with good analgesics & steroid injection will be helpful.
Hope this will help you.
With best wishes.