This is from Family Circle - Health News
Duct Tape Zaps Warts
Duct tape may eliminate warts more effectively than cryotherapy (a treatment using liquid nitrogen). When placed on warts for 6 days at a time for up to 2 months, duct tape made the warts disappear 85 percent of the time, compared to 60 percent for cryotherapy, researchers found.
Now, I have never had warts, but I must remember this one if I ever do.