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Allergies

Allergies

Overview

Heredity, environmental conditions, number and type of exposures and emotional factors can indicate a predisposition to allergies.

Review Date 2/2/2020

Updated by: Stuart I. Henochowicz, MD, FACP, Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.