How does duct tape get rid of warts?

Duct Tape is thought to help remove warts by creating a moist environment that promotes the shedding of the wart tissue. When applied over the wart and left on for several days, it can cause the wart to soften, which may allow for easier removal. The adhesive may also irritate the wart, stimulating the body's immune response to fight the virus causing the wart. While some people find it effective, scientific evidence on its efficacy is mixed.