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Health A-Z

Medical Content Created by the Faculty of the
Harvard Medical School

Prognosis

Acne can almost always be controlled with medication. However, results may not be seen for weeks or months. Most topical medicines work within four to eight weeks. Tretinoin may show peak results in three to six months.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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