An epidural steroid injection is a minimally invasive procedure used to relieve pain and inflammation in the spine. The patient lies on their stomach or side, and the skin in the lower back is cleaned and numbed with a local anesthetic. Using fluoroscopy (X-ray guidance), a thin needle is carefully inserted into the epidural space, which surrounds the spinal cord and nerves. A mixture of steroid medication and local anesthetic is then injected into the epidural space. The medication helps reduce inflammation and relieve pain. The procedure typically takes about 15-30 minutes, and patients may experience relief that can last for weeks or months.