I had a nasty wart on my finger that resisted many trips to the doctors, and sessions with the over-the-counter treatments, tried trimming it with scalpels etc. A GP friend recommended just getting the doctor to leave the CO2 thingamy on for longer. Well, it turns out I have a higher pain threshold than she had theconfidence to keep it on. So it remained.
I then used a drill bit, the kitchen stove, and some pliers. Heated the bit up till it was burny hot, applied to finger until I couldn’t take the pain. Waited for scab to drop off, and repeat. Gone in 2 sessions.
Obviously, I wouldn’t recommend this course of action, as the potential for injury is moderately high – but it worked for me 🙂