How long do numbing treatments for lacerations last?

3 answers

Doesn't that depend upon the following?

Depth of laceration
Specific numbing agent
Amount of numbing treatment administered
Patient susceptibility
depth - about half an inch
agent - i think i heard him say novocaine
amount- 5 shots at wound site
susceptibility - not known
this is not for homework but for my own knowledge - skip over me if you choose