This surprised me, so I thought I would run it past you.
I have 4 warts in a small group on my hand, I've put mms on them and when there was no sting I wiped it off after a minute or two. well, I decided to put it on and just leave it, I went to bed and three hours later woke up as that spot on my hand burned....
So.... I always thought mms wouldn't work on warts as they are a natural occurrence, and mms only worked for a few minutes, but now I realize that it stays active until it hits the pathogen, in my case it had to penetrate the hard top of the wart.
I've done this several times now, each time the waiting period gets shorter. I used straight mms.