I waited 2 weeks and I was fine :) They say to wait till swelling goes down which typically takes 2 weeks - 2 months... I wouldnt change it any sooner than 2 weeks though even if you think the sweeling has gone down all the way, because it most likely hasn't :)
i know i am offtopic, but damn imagine this generation on a medieval battlefield. When the enemy archers would fire their arrows... everyone step onto each other to go in front yelling "free piercings, free piercings"
Are you CRAZY?
call where you had it done and ask what they advise