XTRAC Excimer Laser
Living with psoriasis, vitiligo, or eczema that hasn't responded to creams or ointments? XTRAC excimer laser therapy delivers targeted, in-office treatment without affecting the surrounding healthy skin.

When Stubborn Skin Conditions Don't Respond to Creams Alone
Idaho's dry climate, high-altitude sun exposure, and long winters can make chronic skin conditions like psoriasis, vitiligo, and eczema harder to manage. Many patients across the Treasure Valley have tried topical steroids, moisturizers, and over-the-counter treatments for months or years, only to see limited or temporary improvement.
If patches of psoriasis, vitiligo, or eczema keep returning despite your best efforts, you are not alone, and you have options beyond another refill of cream. The XTRAC excimer laser offers a targeted, in-office approach that many patients find more effective than topical treatment alone.
What Is the XTRAC Excimer Laser?
XTRAC is an FDA-cleared excimer laser system that delivers a concentrated, narrow band of ultraviolet light directly to affected areas of skin. It is one of the phototherapy options available on-site at Treasure Valley Dermatology.
- Uses targeted UVB light (308nm wavelength) to treat specific patches of skin
- Treats only the affected area, sparing surrounding healthy skin
- Commonly used for psoriasis, vitiligo, eczema, and localized scalp psoriasis
- Delivers a higher, more concentrated dose of light than traditional full-body phototherapy units
- Performed in-office at both our Boise and Meridian locations
- Non-invasive with no incisions, injections, or downtime required
What to Expect During Treatment
- Consultation: Dr. Portela, Dr. Ferrell, or Dr. Buttars evaluates your skin condition, treatment history, and determines whether XTRAC is an appropriate option for you
- Session length: Most treatments take just a few minutes, depending on the size and number of areas being treated
- Sensation: Treatment is generally well-tolerated, with many patients describing a mild warming or stinging sensation similar to brief sun exposure
- Frequency: Most care plans involve two treatments per week, spaced a few days apart, for several weeks
- Downtime: None required. Most patients return to normal activities immediately after each session
- Side effects: Mild redness or a sunburn-like appearance at the treated site is common and typically resolves within a few days
What Results May Look Like
Many patients begin to notice changes in the treated skin after several sessions, though individual progress varies based on the condition being treated and its severity.
- Psoriasis patients often notice reduced scaling, redness, and thickness of plaques over the course of treatment
- Vitiligo patients may see gradual repigmentation in treated areas, typically over a longer treatment course
- Eczema patients frequently report calmer, less inflamed skin in stubborn, localized areas
- Full results are typically evaluated after a series of sessions, often 10 to 12 treatments or more
- Maintenance sessions may be recommended to help sustain results over time
Your provider will discuss a realistic timeline based on your specific skin condition during your consultation.
Who Is a Good Candidate for XTRAC?
- Adults and children with localized plaque psoriasis that has not fully responded to topical treatments
- Patients with vitiligo looking for a non-invasive option to address depigmented patches
- Those with chronic or stubborn eczema in specific, localized areas
- Patients who want to avoid or reduce reliance on topical steroids for long-term management
- Anyone who has struggled to get consistent relief from over-the-counter or prescription creams alone
- Patients of nearly any age, since XTRAC is well suited for both pediatric and adult skin conditions
Frequently Asked Questions
Is the XTRAC excimer laser painful?
Most patients describe the sensation as mild warmth or a brief stinging feeling, similar to short sun exposure. Treatment is generally well-tolerated and does not require numbing or anesthesia.
How many XTRAC sessions will I need?
This depends on your specific condition and how your skin responds. Many care plans involve two sessions per week for several weeks, with your provider reassessing progress along the way.
Is XTRAC covered by insurance?
Coverage varies by insurance plan and diagnosis. Our team can help verify your benefits and discuss options during your consultation.
Can children receive XTRAC treatment?
Yes, XTRAC can be an appropriate option for pediatric patients with certain skin conditions. Dr. Portela, Dr. Ferrell, and Dr. Buttars will evaluate your child's skin and history to determine if it's a good fit.
How is XTRAC different from full-body phototherapy?
XTRAC targets only the affected patches of skin with a concentrated dose of light, rather than exposing your entire body. This allows for a more focused approach and may reduce exposure to unaffected skin.
Why Choose Treasure Valley Dermatology
Treasure Valley Dermatology is home to Dr. Dustin Portela, DO, a board-certified dermatologist, dermatologic surgeon, and Idaho native, and Dr. Kelsey Ferrell, DO, a board-certified dermatologist and fellowship-trained Mohs surgeon who graduated Magna Cum Laude from Boise State University, and Dr. Ben Buttars, DO, a board-certified dermatologist. Together, they lead a full-service practice offering medical, surgical, and cosmetic dermatology, along with access to clinical trials, for patients of all ages.
- XTRAC excimer laser and phototherapy available on-site at both locations
- Comprehensive treatment options for psoriasis, vitiligo, eczema, and other chronic skin conditions
- 700+ five-star reviews reflecting a commitment to attentive, unhurried patient care
- Patients consistently describe the team as "genuinely caring" with a practice that feels "like a breath of fresh air"
- Two convenient Treasure Valley locations, in Boise and Meridian, serving Eagle, Nampa, Caldwell, Star, Kuna, and surrounding communities
- Full-family care, from pediatric skin conditions to adult and senior dermatology needs
Ready to Talk About XTRAC Treatment?
If topical treatments haven't given you the relief you're looking for, it may be time to explore a more targeted approach. Dr. Portela, Dr. Ferrell, and Dr. Buttars can evaluate your skin condition and let you know if XTRAC excimer laser therapy is right for you.
Schedule a consultation today at dermatologyboise.com/schedule-an-appointment or call our Boise or Meridian office. Treasure Valley Dermatology is here to help you find lasting relief, close to home.

