Is it possible for a nostril reduction to be performed under local anesthesia and not general?

Absolutely YES, local is the anesthetic of choice for isolated nostril reduction. Markings for the procedure should precede administration of anesthetic to assure accuracy and symmetry prior to swelling and irregularity caused by the injections.

Unfortunately, you have not provided photographs or told us the degree of the reduction. It may be possible if it is a small reduction.

Best Wishes,

Gary Horndeski, M.D.