The lasers and light sources used in the treatment of medical dermatologic skin concerns have a low incidence of adverse effects. The use of ALA-PDT can show a "PDT effect" generally described after prolonged drug incubation and exposure to light sources. This PDT effect of erythema, edema, and crusting has been shown to last up to 1 week after light exposure. It is less likely to occur with the use of full-face, short-
contact therapy. Lasers and light sources can cause erythema, blisters, burns and, on occasion, scarring. No procedure is without an occasional complication.
The lasers and light sources being utilized for psoriasis vulgaris and disorders of hypopig-mentation have shown themselves to be very safe and devoid of major complications.
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Rosacea and Eczema are two skin conditions that are fairly commonly found throughout the world. Each of them is characterized by different features, and can be both discomfiting as well as result in undesirable appearance features. In a nutshell, theyre problems that many would want to deal with.