Prevention
By Mayo Clinic staffSince granuloma annulare often develops on the sun-exposed areas of the hands and forearms, protecting these areas from the sun by limiting exposure, covering with appropriate clothing or applying a high-quality sunscreen (SPF 15 or higher) may be of some help.
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- Prendiville JS. Granuloma annulare: Introduction. 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/content.aspx?aID=2959059&searchStr=granuloma+annulare#2959059. Accessed April 26, 2010.
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- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. April 29, 2010.

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