(i) To assess the effect of adjunctive topical steroids in the combined treatment with UVBnb and dithranol on the remission time after therapy till a relapse of psoriasis defined as 50% loss of PASI (Psoriasis Area and Severity Index) improvement obtained through the antecedent treatment.~(ii) To assess the impact of adjuvant topical steroids in the combined treatment with UVBnb and dithranol on the clearing time of psoriasis lesions under therapy (PASI 75).~Trial with medicinal product
Objective(s):~(i) To assess the effect of adjunctive topical steroids in the combined treatment with UVBnb and dithranol on the remission time after therapy till a relapse of psoriasis defined as 50% loss of PASI (Psoriasis Area and Severity Index) improvement obtained through the antecedent treatment.~(ii) To assess the impact of adjuvant topical steroids in the combined treatment with UVBnb and dithranol on the clearing time of psoriasis lesions under therapy (PASI 75).~Trial with medicinal product