Trigger Point Treatments
I often discuss trigger points, or knots, as they are more commonly known as, to patients during a physical therapy evaluation and treatment.  The above article gives great explanation to different treatments for these annoying nodules, commonly the source of local and referred pain.
I love the statement made by the PT in the article:
As a certified manual trigger point therapist, Kulp views his patients as living, breathing maps of muscles, over which his fingers roam in a search-and-discover mission. When he finds and releases trigger points, then stretches the now-relaxed muscle, patients feel almost instant relief. “You must know what you’re touching,” he said. “It comes back to what we all learn in anatomy class.”