That looks like exactly what I have on my thumb.
A few months ago, I got rather drunk and in a bid to be free of the little swine once and for all, I administered about 10 times the reccomended dose of cryotherapy to it using a kit I got from the shops.
It suggests that you should apply the cotton bud style applicator for no more than 20 seconds. I got through half a dozen of those things for about 30 seconds each having failed to sort it using their reccomendations (which are clearly for sobre softies).
I awoke the next morning mildly worried that I may have just killed off my thumb entirely. There was a large white patch in the middle of my thumb which gradually blistered, popped and eventually grew over.
Sodding wart is still in tact though. So, what is this duct tape malarkey? Surely I can’t get drunk and go mental with the duct tape… goes off to rummage on google…