[Study on the efficacy of a combined treatment of psoriasis with dithranol and UV-B (selective ultraviolet-phototherapy)].

Within a clinical study, 12 patients suffering from generalized psoriasis were treated with 0,4% anthralin ointment, unilaterally applicated in combination with UV-B-therapy. Comparing the results, both modes of treatment revealed no considerable difference with regard to erythema, infiltration of the lesions, scaling, itchiness and irritation. The anthralin induced erythema did not show any augmentation by additional use of UV-B-radiation. The clinical improvement of both applications was considered satisfying in 67% of the cases. UV-B-radiation showed no additional therapeutical value if used in combination with anthralin.