I have started using cyriax´deep friction method on several different types of tendinitis combined with ultrasound/corticosteriodgel with 15 minutes of coldpack following the deep friction. Especially on shoulders (supra- and infraspinatustendonitis) this has worked fine. Its important to do a thorough exam to be sure what/which muscle(or tendon of..) is irritated. Refering to doctors using diagnoses as periarthritis humeroscapularis in describing shoulder pain....