what anesthesia is involved with a nerve block
A nerve block is the injection of numbing medication (local anesthetic) near specific nerves to decrease your pain in a certain part of your body during and after surgery.
1 Therapeutic nerve blocks are used to treat painful conditions. 2  Such nerve blocks contain local anesthetic that can be used to control acute pain. 3  Diagnostic nerve blocks are used to determine sources of pain. 4  These blocks typically contain an anesthetic with a known duration of relief.