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.

Depending on these factors, options can include psoriasis medications applied to the skin (topical psoriasis treatment), light treatments (phototherapy), or medicines taken by mouth or injection.

(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.

Broadband UVB

A UVB phototherapy, called broadband UVB, can be used for a few small lesions, to treat widespread psoriasis, or for lesions that resist topical treatment. This type of light therapy for psoriasis is normally given in a doctor's office by using a light panel or light box. Some patients use UVB light boxes at home under a doctor's guidance.

(UVB and Psoriasis Continued: Page 2)