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Excimer Therapy :

Excimer 308-nm light is a form of targeted phototherapy that delivers a specific wavelength (308 nm) of ultraviolet B (UVB) radiation using an excimer laser or an excimer lamp. Both have shown similar results regarding efficacy, but have technical differences.

The UV ray generated by the excimer light is delivered via a hand-held wand that focuses on the lesion. Compared with narrowband UVB, its advantages are:

  • Healthy skin surrounding the affected areas is not exposed to radiation

  • Different templates are used according to the area to be treated

  • A higher dose of radiation can be delivered, with a reduced cumulative dose of irradiation

  • In some cases, a shorter course of treatment is effective

  • It can be used in areas difficult to reach with conventional phototherapy, such as ears and genitals

  • It can be used in children, as it is a relatively friendly–looking piece of equipment.

Excimer laser therapy is an option for the treatment of localised vitiligo and moderately severe localised psoriasis and unresponsive to topical treatments.

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