Plantar and Palmer Warts
Plantar warts and Palmer warts are common, especially in children. These warts are named for where they appear on the body. Palmer warts occur on the hands, and plantar warts on the bottom of the foot.
Virtually everyone will have a wart (or several) someplace at some time in their lives.
Plantar warts and palmer warts are noncancerous skin growths, caused by a viral infection in the top layer of the skin. The culprit is a strain of virus called human papillomavirus or HPV. Many strains of the virus exist, and those that cause common warts on the hands and feet are not the same strains of HPV that cause genital warts.
The following article concluded: "sodium salicylate iontophoresis appeared to compare favorably with other office-based interventions in diminishing the size of plantar warts and their associated pain. Application of iontophoresis to weight-bearing surfaces in some subjects appeared to decrease the pain and scarring associated with freezing and electrocautery and the fixation problems associated with medicated patches."