This volume deals with the clinical treatment specifics of the variants of the disease, as well as individual treatment modalities. While it should appeal to both the practitioner and academician, the practical information in every chapter provides a strongly clinical emphasis. The first chapters cover the clinical variants of the disease, including studies of pathogenesis. The later chapters discuss the different treatment modalities, reviewing the basic pharmacology or photobiology, proven and theoretical mechanisms of action, and practical management guidelines. Side effects, drug interaction, suggested laboratory studies, and frequency of follow-up visits are also covered. The treatment chapters include case reports from the author's experience at the Cleveland Clinic, chosen to illustrate pitfalls in treatment, adverse reactions, non-compliance and success stories.