Decrease your pain and improve your range of motion using Graston Technique. 

Graston Technique is a type of instrument-assisted soft tissue mobilization (IASTM) used for musculoskeletal injuries. Graston is a set of several stainless steel tools used to rub on the skin. The application of Graston on the skin creates a new signal to the brain that changes the perception of pain as well as alters the environment in your tissues. Together, this leads to a reduction in your pain and a decrease in muscle tension. 

Research on Graston and Manual Therapy

Manual physical therapy combined with supervised shoulder exercise is superior to supervised shoulder exercise alone for enhancing strength and function and reducing pain in patients with shoulder impingement syndrome
— Journal of Orthopedics and Sports Physical Therapy
Friction or firm massage as a treatment to a painful (and likely reactive) tendon can be provocative to the tendons and peritendinous structures, although it has been shown to stimulate protein production in an animal model and may be helpful in a more degenerative presentation
— British Journal of Sports Medicine
This study suggests that instrument-assisted cross fiber massage may accelerate early tissue-level healing following acute capsular/extracapsular ligament injury but it has minimal to no effect in terms of augmenting the overall outcome of the ligament-healing process.
— Journal of Orthopedics and Sports Physical Therapy
For subjects with chronic ankle instability, dynamic postural control, range of motion, pain and disability improved pre-test to post-test regardless of group membership, with the largest effects found in most measures in the dynamic balance test/Graston instrument soft tissue mobilization group
— Journal of Sport Rehabilitation
The results of this study indicate that an application of instrument-assisted soft tissue mobilization to the posterior shoulder provides acute improvements in both glenohumeral horizontal adduction range of motion and internal range of motion among baseball players
— International Journal of Sports Physical Therapy
Our results show that the Graston technique decreased pain and increased range of motion in patients with chronic low back pain
— Journal of Physical Therapy Science