Narrowband UVB Light Therapy to Patients With Dark Skin Types Who Have 10% of Their Body Involved With Psoriasis Vulgaris.

The patient begins total body NBUVB that day at a dose that is 50% of the MED. Patients are treated 3-7 times per week, with increasing doses at every treatment if no burning occurs. This is continued until clearance of disease or maximum efficacy.