Definition:
A substance that is capable of producing an allergic reaction. Common allergic reactions in the skin are hives and atopic dermatitis.
From Heather Brannon, MD, former About.com Guide
Updated March 05, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
A substance that is capable of producing an allergic reaction. Common allergic reactions in the skin are hives and atopic dermatitis.