Carcinogenic effects of prolonged daily low-emission phototherapy in psoriasis.

Background: Low-dose UV treatment has been shown to be effective in mild psoriasis. However, the prolonged use of this treatment modality may raise concerns about its safety. These concerns are mainly focused on potential carcinogenic risks and overuse of this treatment modality.

Psoriasis and daily low-emission phototherapy: effects on disease and vitamin D level.

Background/purpose: Hospital-based phototherapy is a widely accepted treatment modality in psoriasis patients. It, however, requires several hospital visits weekly, interfering with (school)work. Home ultraviolet (UV) treatment has been proven effective before but is only available in certain countries, and safety aspects play a part in reluctancy to prescribe this treatment.