What is an Axillary Brachial Plexus Block?

This outpatient procedure numbs the arm and hand with an injection of local anesthetic. Typically, it is used before or after surgery on the elbow, forearm or hand. The numbing sensation will last for several hours after the injection. The arm will be placed in a sling until the nerve block wears off. When the anesthesia wears off, painkillers may be needed to alleviate pain from the procedure.