The injection of local anesthetic into taut muscular bands called trigger points is an effective medical procedure often used in treatment of myofascial pain syndrome to deactivate pain that causes headaches , neck, back, and sciatic pain.

The injection of local anesthetic into taut muscular bands called trigger points is an effective medical procedure often used in treatment of myofascial pain syndrome to deactivate pain that causes headaches , neck, back, and sciatic pain.