Notwithstanding the persistent lack of understanding of psychogenic influences on warts [see our recent glance at the subject] considerable progress has made in documenting the effects of wart hypnotherapy.
Some hypnotists maintain that success rates for hypnotic wart removal can reach up to 80%. See, for example: ‘Hypnotherapy for Warts (Verruca Vulgaris): 41 Consecutive Cases with 33 Cures’ in: American Journal of Clinical Hypnosis, Volume 35, Issue 1, 1992. The exact psychogenic pathway for such actions, however, remains a mystery – and, to add to the mysteriousness, Melvin A. Gravitz, Ph.D., A.B.P.H., Clinical Professor of Psychiatry & Behavioral Sciences at George Washington University School of Medicine & Health Sciences in Washington, alerts to the idea that hypnosis can not only cure warts, it can also cause them . . . see: ‘The Production of Warts by Suggestion as a Cultural Phenomenon’ in: American Journal of Clinical Hypnosis, Volume 23, Issue 4, 1981.
P.S.: If you know of any cases where psychogenic methods have affected warts, either removing them or inducing them, please let us know.