Source: National Institute for Occupational Safety and Health (NIOSH), U.S. Centers for Disease Control and Prevention (CDC). Available online: http://www.cdc.gov/
Pads with allergen solution are taped to the skin of the back and left on for 24 to 72 hours. The skin patch test can tell is a person has a skin allergy called contact dermatitis.
Harold S. Nelson, MD - Allergy and Immunology
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