How does an epidural steroid injection work?
There are two ways, in which an epidural steroid injection is believed to work. First, some leg pain involves the inflammation of one or more of the nerves, their covering, or their roots, in the back. Thus, the injection of steroids directly into the part of the spinal column called the epidural space is thought to aid in reducing this inflammation. The other way an ESI works is that the corticosteroid acts like a local anesthetic and block the pain long enough to allow the body to begin the process of repairing itself. The chief effect of an epidural steroid injection is to reduce pain, but the effect differs from person to person. Most patients will achieve good relief for months after the injection. The goal of your injection is to provide relief so you can begin an appropriate exercise program and return to normal activities/work.
