Light therapy (phototherapy) works by exposing your skin to specific wavelengths of light that help slow down the overproduction of skin cells and reduce inflammation — two key drivers of psoriasis symptoms.
There are a few main types used for psoriasis:
- Narrowband UVB – The most common type, it targets the skin with a Show Full Answer
Light therapy (phototherapy) works by exposing your skin to specific wavelengths of light that help slow down the overproduction of skin cells and reduce inflammation — two key drivers of psoriasis symptoms.
There are a few main types used for psoriasis:
- Narrowband UVB – The most common type, it targets the skin with a precise wavelength that's effective while minimizing risks
- Excimer Laser – A targeted option great for treating specific patches without affecting healthy skin
- PUVA – Combines a light-sensitizing medication with UVA light for more stubborn cases
- Red Light Therapy – A newer option using red/near-infrared light to stimulate cell repair and regeneration
Between 50% and 90% of people with psoriasis see noticeable improvement with light therapy. Some even achieve full clearance!
It's worth knowing that consistency is key — treatments are typically done 3 times a week for 4 weeks to 3 months. As one MyPsoriasisTeam member noted, keeping up a maintenance schedule after clearing helped keep flares at bay much longer.
Side effects can include redness, itching, and a long-term increased risk of skin cancer, so regular check-ins with a dermatologist are important.
June 1
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