It relieves pain in the rhomboids by eliminating activation points and myofascial adhesions. Another massage method for rhomboids is to have the client lie on his stomach, place his free hand under his shoulder and lift it up. This will help insert your fingertips just below the edge of the scapula to use compression. For example, driving, using a computer, slouching over, sitting hunched over an iPad or phone, or any posture that keeps your arms in front of your body for a long time can cause rhomboid weakness.
Slowly pull your arms back, tightening your rhomboids and squeezing your shoulder blades as shown. The darker the red in the image, the more common it will be to feel pain in the corresponding area if the rhomboid muscles contain activation points. Rhomboids can be painful and feel like they need to be stretched well, but being too stretched anyway means yes. When the rhomboids contain trigger points, you may feel pain on the inside of the shoulder blade and between them, respectively.
Working on the trigger points can really help them, in addition to massaging and stretching the tight pectoral muscles in the chest. As a massage therapist, it's rare for a client to come to us without a knot or tension between the scapula (shoulder blades). Sitting or standing with rounded shoulders for long periods of time constantly stretches the rhomboids and, at the same time, shortens the chest muscles and tightens them, causing the chest muscles to contract the rhomboids at rest. The first thing to do when you have a rhomboid muscle injury is to stop the activity that caused the injury.
Slowly tighten your rhomboids by squeezing your shoulder blades as hard and far as possible, as long as the exercise doesn't cause pain.