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.