Douglas Chang, MD, PhD, Chief of Physical Medicine and Rehabilitation Service with the Department of Orthopedic Surgery at UC San Diego Health (https://health.ucsd.edu/ortho), explains the process patients go through when receiving an epidural steroid injection for pain management. The outpatient, interventional spine procedure is used on patients with chronic back pain and takes about five days to become effective. For more information on epidural steroid injections at UC San Diego Health: https://health.ucsd.edu/ortho