Has anyone had Cryotherapy on a mole?

Hi All,
I just had a keratosis burnt off yesterday.
I expected that the Dr would put the liquid nitrogen on my mole only but he used a cotton bud it went on my skin as well and now I have a burn around the mole as well – is this normal?
Anyone else had it done, he didn’t really tell me what to expect.
The mole is still there – it looks whitish but it’s not falling off.
What happened to your mole and did your skin burn as well?
I don’t think I’ll get another one burnt off – I will just deal with the annoyance of them I think!