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Warts are harmless, brown-colored growths on the skin caused by human papillomavirus (HPV). Since they’re caused by an infectious disease, they can be passed from person to person through physical contact. But there’s good news! A 2002 study found that covering warts with duct tape eliminated them better than freezing them off, the idea being that the tape suffocates the wart.
The jury is still out, though: Subsequent studies on duct-tape treatments haven’t been as convincing. Still want to try it? Clean the affected area, cut a piece of duct tape just larger than the wart you want to get rid of, and smooth it over the skin. Replace the tape every few days until the wart disappears.