I am replying to a topic i know alot on. This is gonna sound disgusting, last year i had 5 warts on one hand, and 18! on the other hand.
I bought some of the freezing stuff from, oh i don't know, a chemist or tesco or something and that stuff didnt even help, i kept getting more and more and more. So i went to a doctor about 7 times, got them all frozen and after that 7 times they were fine. Although you may need less than 7, as i had 18 warts to get off!