Allergic reactions Health Article

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Illustrations
Dermatographism on the back
In dermatographism, hives are readily produced if the skin is lightly scratched. Update Date:
04/28/2008 David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Dermatographism - close-up
Dermatographism on the arm
Hives (urticaria) on the arm

Hives (urticaria) on the chest
Hives (urticaria) - close-up
Hives (urticaria) on the trunk

Dermatographism on the back
Dermatographism - arm
Allergic reactions

Allergic reactions

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