Trigger Point Injection

A trigger point injection (TPI) is an injection that is given directly into the trigger point for pain management. The injection may be an anesthetic, a mixture of anesthetics, or a corticosteroid (cortisone medication) alone or mixed with lidocaine. Sometimes, a needle alone is inserted into the trigger point, and no medication is injected. This may be helpful and is referred to as “dry needling.” With the injection, the trigger point is made inactive and the pain is relieved.