Anti-inflammatory medicines such as aspirin , naproxen or ibuprofen among others can be taken to help with pain. In some cases the physical therapist will use ultrasound and electrical stimulation, as well as manipulation. Gentle stretching and strengthening exercises are added gradually. If there is no improvement, the doctor may inject a corticosteroid medicine into the space under the acromion. However, recent level one evidence showed limited efficacy of corticosteroid injections for pain relief.  While steroid injections are a common treatment, they must be used with caution because they may lead to tendon rupture. If there is still no improvement after 6 to 12 months, the doctor may perform either arthroscopic or open surgery to repair damage and relieve pressure on the tendons and bursae. 
The humerus, glenoid, scapula, acromion, clavicle and surrounding soft tissues make up the shoulder. There are three significant articulations: the sternoclavicular joint, the acromioclavicular joint and the glenohumeral joint. The glenohumeral joint is the most commonly dislocated major joint in the body.
Ligaments and surrounding musculature, including the rotator cuff muscles, contribute to shoulder joint stability. The rotator cuff is composed of the four muscles: supraspinatus, infraspinatus, teres minor and subscapularis that interlock to function as one unit. These muscles help with internal and external rotation of the shoulder and importantly depress the humeral head against the glenoid as the arm is elevated. The tendons join together to form one tendon, the rotator cuff tendon. This passes through the subacromial space. The subacromial bursa, which has a large number of pain sensors, fills the space between the acromion and the rotator cuff tendon. [ 1 ]
The most common outcome following non-operative management of adhesive capsulitis with a stretching program is decreased range of motion compared to the contralateral side.
Adhesive capsulitis is defined as painful loss of motion of a shoulder without an underlying cause. While it is generally believed to be a self-limiting condition, numerous treatment methods have been suggested including benign neglect, steroid injections, physical therapy, manipulation, and arthroscopic or open capsular releases. Intra-articular steroid injections may provide an earlier return of shoulder range of motion, but have not shown a long-term difference. Non-operative management with a stretching program shows high rates of patient satisfaction, but it is commonly associated with decreased range of motion compared to the contralateral extremity.
Griggs et al. reviewed 75 patients with phase-2 adhesive capsulitis who were treated non-operatively with a stretching program. At an average follow-up of 22 months, forward flexion increased by 19 degrees, but still remained 36 degrees less than the unaffected shoulder.
Shaffer et al. reviewed 62 patients with adhesive capsulitis who were treated non-operatively with a stretching program. At an average follow-up of 7 years, 60% of patients had decreased range of motion in at least one plane when compared to a control-group of normal shoulders.
Answer 1: While continued pain is a frequent complication, it is usually much improved from the initial onset of the disease and does not affect quality of life.
Answer 3: Adhesive capsulitis is thought to have a low recurrence rate after it has resolved.
Answer 4: Surgical intervention following non-surgical management of adhesive capsulitis is rare since > 90% report satisfaction with non-operative treatment.
Answer 5: The association between rotator cuff arthropathy and adhesive capsulitis has not been studied.