Not much you can do: Length of anesthesia can vary depending on a variety of factors usually 1-2 hours. May be prolonged if used with other meds. Dr l.
Answered 7/4/2012
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Wait: The numbness from an anesthetic injection should go away on its own within 2 to 8 hours. If the numbness doesn't go away, see your doctor.
Answered 7/28/2012
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