Verruca plana is a benign epidermal tumor caused by human papillomavirus (HPV) selectively infecting the skin, which mostly occurs on the face, the back of the hand or the forearm, and mostly occurs suddenly. The rash is a round, oval or polygonal flat papule with normal or light brown skin color, smooth surface and obvious boundary.

There are many treatment methods, but also have a certain effect, mainly local treatment. If the treatment is not good, it will easily lead to scar formation or pigmentation. To understand and then choose an acceptable treatment.

The disease is benign, the course of disease is slow, and it can often subside or recur on its own. To avoid scratches, resulting in the spread of autologous inoculation. Adjuvant treatments such as Coicis Semen, Ginkgo biloba leaves and Radix Isatidis can be taken as appropriate 1 week, rest for a week, and then continue.