What Are Intercostal Nerve Blocks?
An intercostal nerve block is an injection of medication that helps relieve pain in the chest area caused by a herpes zoster infection (or “shingles”) or a surgical incision. Intercostal nerves are located under each rib. When one of these nerves or the tissue around it gets irritated or inflamed, it can cause pain. A steroid medication and local anesthetic injected under the rib can help reduce the inflammation and alleviate the pain. Intercostal nerve blocks also can be used to help diagnose the source of pain.
How It Helps
An intercostal nerve block is an injection of medication that helps relieve pain in the chest area caused by a herpes zoster infection (or “shingles”) or a surgical incision. Intercostal nerves are located under each rib.