An epidural injection is a medical procedure used to deliver medication directly into the epidural space of the spine. This space is located just outside the protective covering of the spinal cord and contains nerves that can cause pain when irritated. The injection typically contains a combination of a local anesthetic and a steroid, which helps reduce inflammation and alleviate pain, particularly in the lower back and legs. Epidural injections are commonly used to treat conditions such as herniated discs, spinal stenosis, and sciatica. The procedure is usually performed on an outpatient basis and can provide temporary or long-lasting relief from pain. While generally safe, potential risks include infection, bleeding, or nerve damage.