Patients will be injected with lidocaine and given upper trapezius muscle stretching exercises. Lidocaine injection 2cc 2% will be administered to all patients using a 26 gauge, 0.45x13 mm disposable sterile needle to the affected trigger point.

Ozone injection will be performed on patients and upper trapezius muscle stretching exercises will be given. 8 cc of oxygen/ozone gas at a concentration of 15 µg/mL will be injected into the trigger point.

Patients will be given a home program that includes upper trapezius muscle stretching exercises. Upper trapezius stretching exercises will be performed twice a day for at least 15 seconds, ten sets each time, for three weeks, with one hand on the patient's back and the other hand holding the side of the head and tilting it to the side until a slight tension is felt. The exercises will be explained in the text, visual and verbal forms with the exercise form.

for MPS

The pain score will be measured using a 10 cm millimetric visual analog scale (VAS), where patients are asked to mark the degree of pain intensity from 0 (no pain) to 10 (worst pain imaginable) before and after treatment.

NDI was assessed by the neck pain questionnaire that included 10 questions regarding the severity of neck pain, its impact on sleeping, driving, etc. Each question was scored from 0 to 5 and the total score was measured from 50 and was finally reported in percent (%). A higher percentage of NDI was an indicator of more disability and pain.