It is actually a common name for common warts or plantar warts on the soles of the feet. It is a viral infection that is infected with the human papillomavirus, or HPV for short, and because it is contagious and can be self-inoculated, it must be treated early when it is discovered. In addition, do not scratch and stimulate with your hands, otherwise it is easy to infect other parts of your hands. The most important treatment is liquid nitrogen freezing, which is often effective after one or several treatments. Of course, you can also use carbon dioxide laser or high-frequency ionization and other methods of cauterization. For long-term repeated treatment effect is not good, can also be in the lesions of local injection of interferon and other drugs for treatment.