How long will local anesthesia last? Local anesthesia can last from 6 to 8 hours. DHI Mexico2019-03-20T15:16:13+00:00December 5th, 2017|Hair Trasplant|0 Comments Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: DHI Mexico