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Definition
By Mayo Clinic staff
Psoriasis is a common skin disease that affects the life cycle of skin cells. Psoriasis causes cells to build up rapidly on the surface of the skin, forming thick silvery scales and itchy, dry, red patches that are sometimes painful.
Psoriasis is a persistent, long-lasting (chronic) disease. You may have periods when your psoriasis symptoms improve or go into remission alternating with times your psoriasis worsens.
For some people, psoriasis is just a nuisance. For others, it's disabling, especially when associated with arthritis. No cure exists, but psoriasis treatments may offer significant relief. Lifestyle measures, such as using a nonprescription cortisone cream and exposing your skin to small amounts of natural sunlight, can improve your psoriasis symptoms.
- Gudjonsson JE, et al. Psoriasis. In: Wolff K, et al. Fitzpatrick's Dermatology in General Medicine. 7th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/popup.aspx?aID=2983781. Accessed Jan. 26, 2009.
- Psoriasis and psoriatic arthritis. American Academy of Dermatology. http://www.aad.org/public/publications/pamphlets/common_psoriasis.html. Accessed Jan. 26, 2009.
- Bodemer AA. Psoriasis. In: Rakel D. Integrative Medicine. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/117935134-4/796383039/1494/116.html#4-u1.0-B978-1-4160-2954-0..50073-9_3554. Accessed Jan. 26, 2009.
- Questions and answers about psoriasis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/hi/topics/psoriasis/psoriasis.htm. Accessed Jan. 26, 2009.
- Fluhr JW, et al. Emollients, moisturizers, and keratolytic agents in psoriasis. Clinics in Dermatology. 2008;26:380.
- Feldman SR, et al. Epidemiology, clinical manifestations, and diagnosis of psoriasis. http://www.uptodate.com/home/index.html. Accessed Jan. 26, 2009.
- Feldman SR, et al. Treatment of psoriasis. http://www.uptodate.com/home/index.html. Accessed Jan. 26, 2009.
- Aloe. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Jan. 27, 2009.
- Capsicum. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Jan. 27, 2009.
- Fish oil. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Jan. 28, 2009.
- Traub M, et al. Psoriasis: Pathophysiology, conventional and alternative approaches to treatment. Alternative medicine review. 2007;12:319.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. Jan. 29, 2009.
- FDA statement on the voluntary withdrawal of Raptiva from the U.S. market. U.S. Food and Drug Administration. http://www.fda.gov/bbs/topics/NEWS/2009/NEW01992.html. Accessed April 9, 2009.
- FDA approves new drug to treat psoriasis. U.S. Food and Drug Administration. http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm183851.htm. Accessed Oct. 27, 2009.
