ART is great. The key, however, is to talk to your doc about HOW/WHY the scar tissue, knot, whatever occurred. If could be from overuse, poor form (you should never pass up times to reevaluate yourself, esp if you keep getting reinjured), muscular imbalance, etc.
In order to keep you pain free and avoiding injury, you have to adjust your routine to make sure its not making things worse. We all hear about the guy who feels a tightness, tweak, whatever and then one day tears his pec while benching. You all need to really listen to your body and know what it feels like with and without the above mentioned ailments so that yall can catch it early.