“What are the side effects of a nerve block?”

The nerve block makes you numb. The side effects depend on where the nerve block is performed.

Nerve block is very general and, depending upon area and type of nerve block, side effects vary. General side effects are infection, which is extremely rare, local swelling, and needle pain. Side effects to local anesthetic injected can be allergy, if injected into the blood vessel, can get dizzy, seizure, but extremely rare since doctors are very aware and careful.

Side effects of regional block depend on the kind and quantity of anesthetic used. Could be dizziness, weakness, headache, nausea, vomiting, and prolonged numbness in the area.