Hope u have mentioned about trapezius muscle in the neck,because trapezoid is a bone in the wrist.
Trapezius is not primary the cause of pain in most cases,whereas it gets symptomatic secondary to a cervical disc,facet joint dysfunction, rounded upper back,forward head posture,abnormally tilted pelvis etc,
Next Steps
pelvic traction for 4days, followed by cervical traction for a week along with IFT. start shoulder shrugging exercise,pelvic tilts, thoracic mobility exercises,segmental breathing in lying under a physical therapist supervision