My injury was work related,so workmen’s Comp took care of everything. Doctor prescribe norco for about 7 days worth ,but Comp only authorized 4 days worth. I use I ibuprofen as well to help with the pain management. On my other shoulder I also got the cortisone shot ,work for a few days . I slept on the shoulder and woke up with even worse pain ,so maybe the shot did mask your pain and you may have inadvertently made it worse .