Hi my 5 year old kid got small cut on his toe on the water park inside water no idea what it was..but blood was out....cut was not too deep.. He had his atleast 3 dose of tetnus vaccine shot since his birth...not its been 3 days...wound is healed but looking dirty as its toe.. I m worried for titnus...tetnus shot is effective after 3 days or should it be avoided...pls help Had it cleaned with detol and affixed banded but after some time he was again in the pool..