【英语时差8,16】喉管胶布治疗疣（下）（在线收听）

After soaking the wart in water and gently scrubbing it with pumice stone, the procedure was repeated for up to two months, or until the wart disappeared. The cryotherapy patients received a maximum of six treatments over the same time period. By the end, 85% of duct tape patients saw their warts vanish completely, while only 65% of cryotherapy recipients had similar results. As for precisely what makes duct tape so effective, researchers are still uncertain. Scientists speculate that by mildly irritating the wart, the tape activates the immune system which suppresses the viral microbes that cause warts. Robbed of its microbes, the wart gradually vanishes. Although duct tape has gotten all the publicity, it may be the case that other kinds of tape would do just as well. In any case, the next time you get a wart, talk to your medical professional about duct tape.