An intercostal nerve block is an injection of local anesthetic, with or without an anti-inflammatory agent, just under the rib where the intercostal nerve lies. An intercostal nerve block is typically ordered by your doctor for pain in the rib area that develops following surgery in that area, a rib fracture, Herpes Zoster (Shingles) or an intercostal nerve entrapment or inflammatory condition.*
An intercostal nerve block may have diagnostic or therapeutic value.* The block may be repeated but the initial injection usually provides a good, lasting benefit to the patient.*
*Individual results may vary.