What i the iodine treatment for O_o.

I had all 4 of my wisdom teeth pulled at once. They knocked me out with some sort of IV drug. I remember counting backwards from 10 to about 8 then waking up. I originally didn't feel any pain at all and thought "SHit this is it?". A couple hours later is when I noticed that they had LOADED my jaw up with novacane and that I couldn't feel ANYTHING there and had been drooling on myself unconciously for the past few hours.

Then the hurt started.