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Targeted Phototherapy for Psoriasis: Shining a Light on Treatment
Published: Sep 23, 2023
Targeted phototherapy is an innovative treatment option for chronic plaque psoriasis. This procedure uses specific wavelengths of light to treat psoriasis plaques, offering a precise and effective approach to managing the condition.
How Does Targeted Phototherapy Work?
Targeted phototherapy uses ultraviolet (UV) light to slow the rapid growth of skin cells that causes psoriasis plaques. Unlike traditional phototherapy that treats the entire body, targeted phototherapy focuses the light only on affected areas. This allows for higher doses of UV light to be used safely, potentially leading to faster improvement. The most common type is the excimer laser, which uses a 308 nm wavelength of UVB light.
The Treatment Process
During a targeted phototherapy session, the doctor or technician will apply the UV light directly to your psoriasis plaques using a handheld device. Each session typically lasts only a few minutes. Treatment is usually given 2-3 times per week at the start. Many people begin to see improvement within a few weeks, with significant clearing often occurring within 10-12 treatments.
Advantages of Targeted Phototherapy
One of the main benefits of targeted phototherapy is its precision. By treating only affected areas, it minimizes UV exposure to healthy skin. This can reduce the risk of side effects and may allow for higher, more effective doses. Targeted phototherapy can be particularly useful for hard-to-treat areas like the scalp, or for people with just a few stubborn plaques. It's also a good option for those who can't use or don't respond well to topical treatments.
Potential Drawbacks and Side Effects
While generally safe, targeted phototherapy can have some side effects. The most common is redness or mild burning of treated skin, similar to a sunburn. There's also a small risk of blistering if the dose is too high. Long-term risks, like increased skin aging or skin cancer, are thought to be lower than with full-body phototherapy due to the limited area treated. However, the long-term effects are still being studied.
Frequently Asked Questions
Most people feel little to no discomfort during treatment.
Results vary, but many people maintain improvement for months after treatment.
Yes, it's often used alongside topical treatments for better results.
Many insurance plans cover it, but check with your provider.
It's often faster and may have fewer side effects for limited psoriasis.
Shedding Light on Your Options
Targeted phototherapy offers a unique approach to treating chronic plaque psoriasis, especially for those with limited disease.
References
- Almutawa F, et al. Photodermatol Photoimmunol Photomed 2015; 31:5.
- Bónis B, et al. Lancet 1997; 350:1522.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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