Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes. 
In most cases, bursitis of the shoulder is caused by performing repetitive movements for an extended period of time, such as throwing a baseball, playing tennis, painting, scrubbing, gardening, carpentry, etc. Shoulder bursitis can also be exacerbated by a physical trauma or previous injury to the joint area. Your risk for developing bursitis increases with age as joint components, including the bursa, tend to decline as you get older. People over the age of 40 are at the highest risk for developing bursitis. Shoulder bursitis can also be brought on by other joint conditions such as rheumatoid arthritis, psoriatic arthritis, gout, and thyroid disorder.
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.