Efficacy of Focused ESWT and Dry Needling Among Patients With Myofascial Pain Syndrome of the Upper Trapezius Muscle

* This study is a single-blinded non-inferiority randomized controlled trial that will compare the efficacy of fESWT to DN in terms of pain reduction and functional improvement in patients with MPS of the upper trapezius. * 58 patients will be recruited for the study and randomly allocated to 2 groups, mainly fESWT and DN. * For the fESWT group, the participants will receive fESWT once a week, for a total of 3 sessions, consecutively. While the participants in the DN group will receive DN at the painful trigger point for 1 session. Moreover, both groups will receive the same conservative treatment, for example, education, exercise, and behavioral modification advice. * The primary outcome is Visual Analogue Scale (VAS) and the secondary outcomes are Pain Pressure Threshold (PPT) and Neck Disability Index (NDI) which will be recorded at baseline, 1 week, 3 week, and 6 week from baseline. * Statistical analysis will be performed using Stata to detect statistically significant changes in the same group and differences between the two groups.