[Technical experience with 8-methoxypsoralen photochemotherapy in common psoriasis].

Photochemotherapy with 8-MOP und UV-A is a modality to treat psoriasis vulgaris successfully. Technical experiences with three types of machines, a horizontal box with Sylvania fluorescent lamps, a stand-up box, and a hand-foot-box with Osram fluorescent lamps are reported. Oral and topical 8-MOP applications are compared for these three types of boxes. Disadvantages of the oral or topical 8-MOP applications are compiled. Oral 8-MOP is superior to the topical treatment in both the stand-up and the horizontal box. The following technical features are discussed: Minimal phototoxic dose, photopigmentation index, radiation-dose, time increments during treatment, maintenance therapy, and UV-A meters.