Warts, those horny, homely growths on the surface of the skin, are often harmless annoyances that tend to disappear if ignored. Occasionally they can grow large or deep enough to cripple hands and feet or, if on the face, to cause psychological problems. But while warts have bedeviled man for thousands of years, physicians have yet to discover either the reason or the remedy for them.
Dr. Leon Goldman, a University of Cincinnati dermatologist, reports that doctors can say for certain only that warts are produced by a polyoma virus, a highly contagious carrier....
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