Trigger point injections are performed in an outpatient setting. The trigger point is located by palpation by the physician and the site is marked.
Ultrasound may also be used to identify the location of the trigger point. The skin of the site to be injected is cleaned with an antiseptic solution to help reduce the risk of infection.
A local anesthetic may be applied to numb the area prior to the injection to make the procedure more comfortable for the patient.
The needle is then inserted into the trigger point and the medication is injected. A bandage may be applied to the injection site after the procedure, if necessary.