Discussion
The above results show PAI is effective and safe to treat subungual
warts. In addition, it has been reported that PAI can effectively
eliminate different types of HPV infection[4]. PAI
is a compound preparation of Chinese traditional medicine, containing
Fructus Cnidii, Honeysuckle, and Sophora
flavescens[5]. At present, it is considered that
PAI can quickly cross the epidermal cell space to reach the basal layer
of the epidermis without damaging the dermis and the subcutaneous
tissue, the mechanism of PAI maybe the exfoliation of epidermal
cells[4-6].