I would say the trick to massage is finding the right massage therapist. I would also say the person would be not just a regular store front massage type place but More of a physical therapist. I was amazed on how much knowledge mine had about the construction of the shoulder and connected muscle and tendons. My problem was one of range of motion. When my Cardiologist was doing a routine check up at Mayo ask in general how I was doing and I mentioned my shoulder, so she did a quick range of motion test and said yes I definitely had a problem in my range of motion and wrote me a prescription to go to a physical therapist. I happen to have one in my little town and got the treatments there which beside some stretching usually ended with about a 20 min deep tissue massage and also recommendations for further stretches and strength at home using bands . I was impressed with there knowledge of where to massage which sometimes did not seem like the right spots like working something on my back to releave pain in another part of my shoulder. Very complex area I'm sure the training is pretty intense. I'm in Arizona and the name of the place was empower physical therpy. I don't know if they are nation wide but maybe your doctors may know a good one.