Details.
UVB phototherapy systems include full-body cabinets, half-body and full-body panels, and targeted 308 nm excimer lasers. Treatment is used for plaque psoriasis, vitiligo and localised dermatoses. Sessions take seconds to a few minutes, with standard protocols scheduling 2 to 3 sessions weekly across an 8 to 12 week course. Treatment should be carried out under a dermatologist's guidance.