Patients attend two to three times weekly. The patient is placed in a specially designed device utilizing fluorescent light tubes.
The patient stands in the center of the device, undressed except for underwear, and wears protective goggles. Usually the whole body is exposed to the UVB for a short time (seconds to minutes).
The amount of UV is carefully monitored and a number of different treatment protocol are recommended depending on the individual’s skin type, age, skin condition and other factors.
The skin may remain pale or turn slightly pink (the Minimal Erythemal Dose) after each treatment. Let your dermatologist know if you experience any discomfort.
Patches of psoriasis generally start to become thinner after five to ten treatments. Most patients with psoriasis require 15 to 25 treatments to clear out.
For other diseases, it is almost the same number of sessions required to get good results.
Narrow-band UVB can result in burning resembling sunburns and for this reason our dermatologists will always prescribe our patients special creams and lotions and will advise them to avoid sun exposure as much as they can.
Long term exposure to ultraviolet radiation ultimately causes skin ageing and skin cancers. Although the risk from narrow-band UVB is unknown, research to date suggests it is no more risky than broadband UVB and probably less risky than photochemotherapy (PUVA) treatments.