Duct tape has many uses, but the claim that it's a cheap, effective treatment for warts is challenged by a new U.S. study in the March issue of the journal Archives of Dermatology.
A small study in 2002 suggested that duct tape helped treat warts on children and young adults. The theory is that the tape irritates the skin and prompts the immune system to attack the virus that causes warts, the Associated Press reported.
But this new study found that warts disappeared in 21 percent of 39 patients who used duct tape for seven days, compared to 22 percent of 41 patients who used moleskin, a cotton-type bandage used to protect the skin.
This new study used transparent duct tape, while the 2002 study used the better-known gray duct tape. Grey duct tape contains rubber while transparent duct tape does not, the AP reported.
"Whether or not the standard type of duct type is effective is up in the air," said study co-author Dr. Rachel Wenner of the University of Minnesota. "Theoretically, the rubber adhesive could somehow stimulate the immune system or irritate the skin in a different manner."
HealthDay News, March 20, 2007