Photochemotherapy involves the therapeutic use of nonionizing radiation in combination
with a photosensitizing chemical to trigger a photochemical reaction that mediates a
beneficial effect. The successful introduction and widespread use of psoralen
photochemotherapy (PUVA) in the management of psoriasis was the chief stimulus for
recent interest in the therapeutic use of nonionizing radiation in various other dermatoses.
This article discusses the expanding spectrum of diseases responding to PUVA therapy …