Allergy Tests

What Affects the Test

Reasons you may not be able to have a skin test or why the results may not be helpful include:

• Exercise that causes excessive sweating.
• Getting a skin patch wet.
• Taking medicines such as antihistamines or tricyclic antidepressants.

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Author:	Bets Davis, MFA	Last Updated: July 2, 2009
Medical Review:	E. Gregory Thompson, MD - Internal Medicine Harold S. Nelson, MD - Allergy and Immunology
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