Epidural steroid injection

Epidural steroid injection (ESI) is a technique for relieving pain from spinal stenosis and spinal disc herniation. Using a needle, corticosteroids and a local anesthetic are injected into the epidural space around the spinal cord and spinal nerves. The anesthetic gives short-term relief, and the corticosteroids give longer-term relief. The anti-inflammatory effect of the corticosteroid can relieve pain when that pain is caused by inflammation of the roots of the nerves branching out from the spine. There are risks to ESI, including death when the corticosteroids are infected, as in a 2012 meningitis outbreak.