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    Laser Treatment for Psoriasis

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    How Well Do Psoriasis Laser Treatments Work?

    Psoriasis laser treatments work well on people with mild-to-moderate psoriasis. But because the light is concentrated, it's not effective for people with psoriasis on large areas of the body.

    Because laser treatment for psoriasis is still a relatively new therapy, research is still underway to confirm its effectiveness. Some studies find that most people who are treated with lasers see real improvements in their skin that can last anywhere from several months to a year. Results are usually seen within 8 to 10 sessions.

    What You Should Know Before Starting Laser Treatment

    Laser treatment for psoriasis can produce dramatic results in some people -- but this therapy isn't for everyone. To make sure you're a good candidate, have a complete health history and exam done before starting treatment.

    Avoid laser treatments if you have:

    • Lupus
    • Sun sensitivity
    • Xeroderma pigmentosum (an inherited disease that causes sensitivity to sunlight)
    • Risks for, or a history of, skin cancer
    • A condition that requires you to take medications that make you sensitive to the sun
    • A weakened immune system

    Are There Any Risks to Laser Treatments for Psoriasis?

    Laser therapy is generally safe, but some people have reported side effects after treatment, including:

    • Temporary redness, itching, burning, and stinging
    • Blistering
    • Purple-colored spots (purpura) on the skin
    • Darkening or lightening of the skin (hyperpigmentation or hypopigmentation)
    • Scarring

    More research is needed to determine whether exposure to UVB light from the excimer laser might increase the long-term risk for skin cancer.

    WebMD Medical Reference

    Reviewed by Stephanie S. Gardner, MD on May 31, 2015
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