Narrowband ultraviolet B therapy in psoriasis: randomized double-blind comparison of high-dose and low-dose irradiation regimens

Abstract

High-dose UVB therapy results in fewer treatments with better long-term efficacy, with cost-effective benefits for hospital and patients. Therefore UVB phototherapy in a high-dose regimen for psoriasis is recommended. However, a protocol adjustment in the second week with a high-dose regimen is desirable to prevent erythema.