Placing duct tape over the wart is an old trick that can actually work sometimes. Puma Suede Black White Gum It's not the tape itself that does the trick it's most likely the skin's allergic reaction to the adhesive that stimulates the body's immune system to kill the virus, says Smith. A 2007 study from the University of Minnesota found that duct tape was effective 21% of the time. If you want to try it, follow these steps: Apply the duct tape over the wart, a bit bigger than the wart, to ensure the tape stays fixed to the skin. Leave it on six and a half days, replacing if it Puma Suede Black White Gum falls off, and then let the Puma Suede Black White Gum skin rest overnight. Repeat for several weeks, says Davis.