pain upper right shoulder? The most common cause of shoulder pain occurs when the rotator cuff tendons get caught under the bony area of the shoulder. Tendons become inflamed or damaged. This condition is called rotator cuff tendinitis or bursitis. In my opinion the best way to relieve pain in upper right shoulder is this 30 sec exercise I do in bed every night! shoulderpain#shoulderpainexercises#shoulderbladepain#shoulderpaintreatment#shoulderpainreliefexercises#upperbackpain