UVB and Psoriasis

Ultraviolet B (UVB) phototherapy is one of the options for psoriasis treatment. UVB is light with a short wavelength that is absorbed in the skin's epidermis. An artificial source can be used to treat mild and moderate psoriasis. UVB phototherapy is separated into two different types: broadband and narrowband UVB. After the patient has had several close-together treatments with UVB, and psoriasis symptoms have improved somewhat, a maintenance treatment once a week may be all that is necessary.

Information on Psoriasis

An Introduction to UVB and Psoriasis

Psoriasis treatment is usually based on:

The severity of the disease
Size of the areas involved
Type of psoriasis
Patient's response to initial psoriasis treatments.

This is sometimes called the "1-2-3" approach.

Step 1 uses psoriasis medications applied to the skin (topical psoriasis treatment)
Step 2 uses light treatments (phototherapy)
Step 3 involves taking medicines (by mouth or injection) that treat the whole immune system (called systemic therapy).

(Click Psoriasis Medication for more information about topical and systemic treatment options for psoriasis.)

Natural ultraviolet light from the sun and controlled delivery of artificial ultraviolet (UV) light are used in light treatment for psoriasis. One option for controlled delivery of artificial UV light is UVB.

Ultraviolet B (UVB) Phototherapy

UVB is light with a short wavelength that is absorbed in the skin's epidermis. An artificial source can be used to treat mild and moderate psoriasis. Some physicians will start treating patients with UVB instead of topical agents. UVB phototherapy is separated into two different types: broadband and narrowband UVB.

(UVB and Psoriasis Continued: Page 2)