In clinical testing, the tape actually worked better than expensive medical procedures. We think the tape causes a local inflammatory reaction that signals your immune system to kill the wart virus. What kind of tape works best?... Source: Best choices from the People's Pharmacy , Prevention, PO Box 378, Emmaus PA 18099-0378
[Checked on this - use duct tape - http://www.mckinley.uiuc.edu/Handouts/wart_duct_tape.html]