Sometimes, the treatment of warts can cause doctors "low self-esteem" (especially when treating plantar's warts). No matter what we throw at that verrucous lesion—we can try to freeze it, pare it down with a sharp scalpel, and try to suffocate it under duct tape—it just laughs at us, menacingly, like this:
At that point, the time has come to get out the big guns: DNCB (dinitrochlorobenzene). Our practice has found DNCB to be highly effective. But treat the stuff with utmost respect! And don't ever spill it in the office! That would be an environmental nightmare! And prepare the patient for multiple visits.