How do doctors freeze of warts?

Question

what do they freeze them off with and how long does it take?

Answer 1

the wart is frozen off with liquid nitrogen

the technique is called: cryotherapy (killing the wart with frost).  

Answer 2

they use liquid nitrogen, it is so cold, it freezes it as soon as it touches the wart, the wart turns black, dies, and falls off. ive had it done several times.

Answer 3

My son had some huge plantar warts on his feet, the Dr did the freezing and it did not work so I bought a freezing kit at the store and that worked after like 5-6 times. After a few days they just peeled off and he had holes there, then they filled in by the next day. Oh and a tip do it after a shower, it works better!