I recently read an article in the local paper concerning the "duct tape therapy for warts" study byFocht et al1 and smiled very broadly. I and many of my dermatology colleagues have been using this type of painless, yet effective, therapy for several decades. It was championed by dermatologist Dr Jerome (Jerry) Litt2 in a 1978 journal article, and he had been using it for years before that.
Rudolph RI. Warts and Duct Tape—A Good Combo!. Arch Pediatr Adolesc Med. 2003;157(5):489-490. doi:10.1001/archpedi.157.5.489