If it's deep enough to need stitches you'll need injectable lido imo. Like @toddnjoyce said, you should practice stitching before you need to do it.
Depending on the depth and location you could get away with pressure till the bleeding stops then steri-strips or another decent dressing instead of stitches.
Depending on the depth and location you could get away with pressure till the bleeding stops then steri-strips or another decent dressing instead of stitches.