In the epidural space, a bulging disk can cause strained and irritated nerves. This will also cause narrowed “nerve canals” and bone spurs resulting in pain, numbness, or tingling.
An epidural steroid injection is appropriate for this kind of inflammation. It is an injection of an anti-inflammatory steroid within the epidural space. This particular steroid injection may lessen inflammation of nerves in the epidural space and eventually reduce pain and its other symptoms.
Typically, the steroid begins working in a span of 2-7 days, and its effect can last for several days to even longer. The immediate effect usually comes from the local anesthetic injected which gradually disappears in a few hours.