Treatment depends on stage and irritability of the patient. If the patient has low irritability and primary range of motion impairments have been addressed, it is important to work on movement retraining. This exercise focuses on keeping the head of the humerus centered in the glenoid as the patient work on internal and external rotation. (Click image to watch 1-2 minute video)
The beauty of movement retraining as a treatment is that it can also be sent home as a home exercise for the patient to work on. The above video shows a progression from working on precision training in supine. Once that is mastered you can progress the patient to prone and then to standing exercises. Quality of motion over quantity is very important to consider with movement retraining! (Click image to watch 1-2 minute video)