Vitiligo Vitiligo (vit-ill-EYE-go) is a disorder in which white patches of skin appear on different parts of the body. This happens because the cells that make pigment (color) in the skin are no longer functioning. Some people will only see small patches, while others can have a large portion of their body with varying skin color. Our XTRAC Excimer Laser Therapy can greatly improve the appearance of the skin by improving the consistency of your pigmentation. Treatment Options Excimer Laser Therapy (XTRAC) XTRAC Excimer laser therapy delivers painless and consistent results. To learn more about our treatments for Vitiligo or to schedule your consultation at Dermatology Associates of Plymouth Meeting, P.C., serving the Philadelphia metro area, including The Main Line, Chestnut Hill, Blue Bell, Gwynedd and Flourtown, please fill out the form on this page or call 610.947.4322.