hi, mr flump had a frozen shoulder like you have and endured the same agony . After the usual painkillers, and two or three of the injections he was offered physiotherapy and that was the turning point for him. He was given an exercise sheet and at the beginning he could not do very many of them as his shoulder was so very painful. However he was told to work through the pain and he did this slowly and in time the movement became more fluid ,and relieved his pain. One to start with would be to stand with both arms hanging free , then lean forwards letting your arms dangle. Slowly bring the injured one in as much of a circle as you can manage, it seemed to help mr flump. If you can get hold of an exercise sheet from your GP it would give you a head start before physio. Good luck , hope you get some relief soon. Mr flump also pinched my teddy to rest his shoulder on in bed ! !