UV PHOTOTHERAPY SUITABLE FOR MANY KINDS OF DISEASE

Type:Uv phototherapy   Time:2015-05-06 14:01:17 Psoriasis
In psoriasis, UVB phototherapy has been shown to be effective. A feature of psoriasis is localized inflammation mediated by the immune system.Ultraviolet radiation is known to suppress the immune system and reduce inflammatory responses. Light therapy for skin conditions like psoriasis usually use NB-UVB (311 nm wavelength) though may use UV-A (315每400 nm wavelength) or UV-B (280每315 nm wavelength) light waves. UV-A, combined with psoralen, a drug taken orally, is known as PUVA treatment. In UVB phototherapy the exposure time is very short (seconds to minutes depending on intensity of lamps and the person's skin sensitivity). The time is controlled with a timer that turns off the lamps after the treatment time ends.
Vitiligo
One percent of the population suffer from vitiligo, and Narrowband UVB Phototherapy is an effective treatment. "NB-UVB phototherapy results in satisfactory repigmentation in our vitiligo patients and should be offered as a treatment option."
Acne vulgaris
Evidence for light therapy and lasers in acne vulgaris as of 2012 is not sufficient to recommend them. While light therapy appears to provide short term benefit, there is a lack of long term outcome data or data in those with severe acne.
Cancer
According to the American Cancer Society, there is some evidence that ultraviolet light therapy may be effective in helping treat certain kinds of skin cancer, and ultraviolet blood irradiation treatment is established for this application. However, alternative uses of light for cancer treatment 每 light box therapy and colored light therapy 每 are not supported by evidence.
Other skin conditions
Phototherapy can be effective in the treatment of eczema, atopic dermatitis, polymorphous light eruption,cutaneous T-cell lymphoma and lichen planus. Narrowband UVB lamps, 311每313 nanometer is the most common treatment.
Wound healing
Some case studies have found low-level laser light to be possibly helpful as an adjunctive treatment in wound healing, although a review of the overall scientific literature does not support the use of low-level laser therapy for this purpose.
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