Ultraviolet light and psoriasis
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Ultraviolet light and psoriasis
Ultraviolet B (UVB)
UVB light is more effective than UVA light for treating psoriasis.
- Exposure times start at 30 to 60 seconds and are gradually increased until light causes the skin to turn red. When the skin no longer turns red after this much exposure, the time is increased.
- Treatments are given daily or several times a week.
- UVB light is used alone, with tar products (Goeckerman treatment), or with anthralin applied to the skin (Ingram regimen).
Ultraviolet A (UVA)
UVA penetrates deeper into the skin than UVB.
- Treatment with UVA typically takes 20 minutes per session.
- UVA light used with psoralen drugs is called PUVA. With PUVA, the treatment time is greatly reduced, from 20 minutes to about 2 minutes.
Credits
| Author | Shannon Erstad, MBA/MPH |
| Author | Ralph Poore |
| Editor | Kathleen M. Ariss, MS |
| Associate Editor | Michele Cronen |
| Primary Medical Reviewer | Patrice Burgess, MD - Family Medicine |
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Specialist Medical Reviewer | Alexander H. Murray, MD, FRCPC - Dermatology |
| Last Updated | January 6, 2006 |
| Last updated: | January 06, 2006 |
|---|---|
| Author: | Ralph Poore |
| Reviewed By: | Kathleen Romito, MD - Family Medicine, Alexander H. Murray, MD, FRCPC - Dermatology |
| Editors: | Kathleen M. Ariss, MS, Michele Cronen |
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