Photo Therapy/NBUV

Narrowband UVB is the most common form of phototherapy used to treat skin diseases. "Narrowband" refers to a specific wavelength of ultraviolet (UV) radiation.
The narrowband range of UV radiation has proved to be the most beneficial component of natural sunlight.
Narrowband UVB may also be used in the treatment of many skin conditions including psoriasis atopic eczema, vitiligo, pruritus etc.