Phototherapy & Excimer Lasers

Phototherapy and excimer laser therapy are non-invasive options that use targeted light to reduce inflammation and stimulate healing in the skin. Unlike systemic treatments (like oral medications), these therapies are localized, meaning they only affect the treated area, which may reduce systemic side effects. Compared to topical treatments, these light therapies may provide faster results for certain patients, especially those with large or hard-to-treat areas.

Both phototherapy and excimer laser treatments are generally considered safe when administered by trained professionals. They work by delivering controlled doses of UVB light to the affected areas of the skin. However, as with any medical treatment, there are some risks, including mild skin irritation or redness. The risk of side effects is minimized when the treatment is properly calibrated and customized to your skin condition.

During a phototherapy treatment, you will typically stand inside a booth that emits ultraviolet B light. For excimer laser treatment, a focused beam of UVB light will be directed at the affected areas of your skin. Both treatments are quick, with visits usually lasting between 10 and 30 minutes and treatment lasting between 1-5 minutes on average. Most patients find the experience comfortable, though some may feel a slight warmth or a tingling sensation.

In most cases, phototherapy and excimer laser treatments are not painful, but you may experience some mild discomfort or a sensation of warmth on the treated skin. If the area is sensitive or inflamed, you might feel a bit of stinging or itching, but these sensations are typically temporary and subside after the session.

The number of sessions required depends on your skin condition, severity, and how well you respond to treatment. Typically, patients undergo 2 to 3 sessions per week for a period of 4 to 12 weeks. Patients will then see their provider to assess their progress and the provider may suggest additional treatments. Some patients may begin to see improvements in just a few sessions, while others may need longer treatment periods to achieve optimal results.

Before your treatment, avoid using any topical steroids, lotions, and SPF 4 hours prior to the treatment. In the weeks leading up to treatment, it’s also important to protect your skin from direct sunlight and tanning beds. If you’re using medications that increase sensitivity to light (like certain antibiotics or topical retinoids), you should discuss this with your provider beforehand.

Most side effects are mild and temporary. Common side effects include hyperpigmentation (tanning), redness, dryness, or slight irritation at the treatment site. Rarely, more serious side effects like blistering or changes in skin texture can occur. These are typically linked to overexposure or improper treatment settings, so it’s important to follow the treatment plan recommended by your provider.

While phototherapy and excimer laser therapy can help manage symptoms and reduce flare-ups, they are not permanent cures. Many patients experience long-term remission, but flare-ups may occur, especially in individuals with chronic conditions like psoriasis and eczema. Maintenance treatments may be necessary to help sustain results.

When performed under proper medical supervision, the long-term risks of phototherapy and excimer laser treatments are minimal. However, excessive unsupervised UV exposure over time can increase the risk of premature skin aging or, in rare cases, skin cancer. Your doctor will monitor your treatment closely to minimize these risks and will adjust the plan as needed to ensure safety.

In many cases, phototherapy or excimer laser therapy can be used alongside other treatments like topical medications or systemic therapies. However, it’s important to discuss your current treatment plan with your healthcare provider to ensure there are no interactions or contraindications.

Phototherapy and excimer laser treatments are clinically proven effective for many individuals with vitiligo, psoriasis, and eczema, although results can vary. For vitiligo, these treatments can help re-pigment the skin in areas where color has been lost. For psoriasis, they can reduce inflammation and scaling. Eczema patients often experience a reduction in flare-ups and irritation. The effectiveness largely depends on factors such as the extent of the condition, skin type, and how well you respond to light therapy.

Insurance coverage for phototherapy and excimer laser treatments may vary depending on your provider and specific policy. Many insurance companies cover these therapies when they are deemed medically necessary for treating conditions like vitiligo, psoriasis, or eczema. It’s best to check with your insurance provider ahead of time to understand what is covered and what out-of-pocket costs you may incur.