Cryotherapy versus salicylic acid for the treatment of plantar warts (verrucae): A randomised controlled trial.
Cockayne S, Hewitt C, Hicks K et al.
Plantar warts are extremely common with a prevalence rate ranging from <1% in the US to >20% in 16–18-year-olds in Australia. Although these warts often disappear spontaneously, many individuals seek treatment, often because of discomfort. The annual cost of treatment for cutaneous warts in England and Wales is >£40 million (approximately US$63 million or €45 million (Health Technol Assess 2006;10:iii, ix–87) with the most common prescribed treatments being liquid nitrogen and topical salicylic acid.