Is Sunlight a Form of Therapy That Can Treat Plaque Psoriasis?
Ultraviolet light or phototherapy can be used to treat psoriasis, says Dendy Engelman, MD, a dermatologic surgeon with Metropolitan Hospital Center. Learn more about light therapy in this video.
Ultraviolet light, or phototherapy
can be used to treat psoriasis. We use it in my office all the time with a narrow band of ultraviolet light, which
is the B spectrum, which is 311 nanometers of light. And so that's why when patients go into the sun,
if they have psoriasis, their skin does clear. It does get better, because ultraviolet light is actually
anti-inflammatory. It also suppresses the immune system, and we know that we have over-activity of our immune response when we have psoriasis.
So that is a treatment that we use in office, and oftentimes that people don't have access to phototherapy in a booth, or a laser,
we do encourage a little bit of natural sunlight. It's one of the few times a dermatologist will tell you to go get some sun.
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