Heat might work. I’ve heated a blunt nail only enough to cause a second degree burn and stuck it on the wart. Do so until the pain and itch goes away, then remove the nail. Treat the resulting blister accordingly. A system that isn’t quite so bad, blister wise, is to place the wart on the hot water faucet spigot (metal spigot) and turn on the hot water and leave the wart in contact until you can no longer stand the pain. Then put it back on the spigot again! Do this three times or more, depending on the size of the little bastard. No blister, and wart is dead (sterilized?) and will heal in time with little or no scar. Hope this helps! Good luck!