Phototherapy is the use of ultraviolet (UV) light to slow the rapid growth of new skin cells conditions, such as psoriasis. There are two types of ultraviolet (UV) light therapy:

  • UVB light is used alone, with tar products or with anthralin and applied to the skin.
  • UVA light used with psoralen drugs. The treatment time is greatly reduced, from 20 minutes to about 2 minutes.


Vitiligo is characterized by loss of pigment in patches of the body. Vitiligo is considered an autoimmune process in which the body destroys its own pigment. Narrowband phototherapy, can help create re-pigmentation. It is currently considered the “gold standard” treatment when vitiligo covers 20% or more of the body. This process works from the outer edges of each patch inward twice a week for a year or more. Phototherapy Vitiligo light treatment is generally well-tolerated in both adults and children.


It typically affects the outside of the elbows, knees or scalp, and other locations. Psoriasis develops because the outer layers of skin cells reproduce too fast. Some people report that psoriasis causes itches, burns and stings. It also causes stress and impacts the quality of daily life.

Psoriasis light treatment, causing them to die. In this way, the light therapy reduces inflammation, and slows the rate of skin cell production.