While much about warts remains a mystery, it is known that they are evidence of an infection in the top layer of the skin and that they are caused by any of more than 60 types of human papillomavirus. Some people are naturally resistant to the viruses, but others endure a lifetime of eruptions. The acid gradually peels away the surface of the skin, which creates a hostile environment for the wart and, by irritating the area, apparently brings the wart to the attention of the body's immune system. Still, many conventional doctors scoff at using hypnosis, contending that it's difficult to know whether to credit the technique or the passage of time for improvement. Mainstream Measures Conventional treatment is aimed at removing the wart, not killing the virus that caused it.
Filiform warts are thread-like growths on the face or neck.
Flat warts are small and smooth and may pop out in large groups, especially in the beard area for men and on women's legs. Of most concern are the estimated 1 million new cases of genital warts diagnosed in the United States annually, because these wart viruses are highly contagious. Acquired by sexual contact with an infected partner, some genital wart viruses increase a woman's risk of cervical cancer. The best treatment approach is determined by the patient's age, the location and number of warts, and the patient's preferences, says Karl Beutner, associate clinical professor of dermatology at the University of California at San Francisco . If a patient wants a wart treated, Beutner likely will freeze it with liquid nitrogen, unless it's on the foot.