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Definition
By Mayo Clinic staffItchy skin is an uncomfortable, irritating sensation that can make scratching irresistible. It seems simple. When you itch, you scratch. But itchy skin can have hundreds of possible causes. Also known as pruritus (proo-RIE-tus), itchy skin may be the result of a rash or another condition, such as psoriasis or dermatitis. Or itchy skin may be a symptom of an internal disease, such as liver disease or kidney failure. Though itchy, your skin may appear normal. Or it may be accompanied by redness, rough skin, bumps or blisters.
Identifying and treating the underlying cause of itchy skin is important for long-term relief. Itchy skin treatments include medications, wet dressings and light therapy. Self-care measures, including anti-itch products and cool baths, can also help.
- Cassano N, et al. Chronic pruritus in the absence of specific skin disease. American Journal of Clinical Dermatology. 2010;11:399.
- Yosipovitch G, et al. Pathophysiology and clinical aspects of pruritus: Introduction. In: Wolf K, et al. Fitzpatrick's Dermatology in General Medicine. 7th ed. New York, N.Y.: The McGraw-Hill Companies. 2008. http://www.accessmedicine.com/content.aspx?aID=2960463&searchStr=pruritus#2960463. Accessed Oct. 26, 2010.
- Pruritus. American Academy of Dermatology. http://www.aad.org/public/publications/pamphlets/common_pruritus.html. Accessed Oct. 26, 2010.
- Fazio SB. Pruritus. http://www.uptodate.com/home/index.html. Accessed Oct. 26, 2010.
- Metz M, et al. Chronic pruritus - Pathogenesis, clinical aspects and treatment. Journal of the European Academy of Dermatology and Venereology. 2010;24:1249.
- Berger TG. Dermatologic disorders. In: McPhee SJ, et al. Current Medical Diagnosis and Treatment. 50th ed. New York, N.Y.: The McGraw-Hill Companies. 2011. http://www.accessmedicine.com/content.aspx?aID=747&searchStr=pruritus#1682. Accessed Oct. 26, 2010.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. Nov. 8, 2010.
- Benzocaine topical products: Sprays, gels and liquids — risk of methemoglobinemia. U.S. Food and Drug Administration. http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm250264.htm. Accessed Apr. 8, 2011.
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