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Hives (urticaria) on the arm	Hives (urticaria) on the chest	Hives (urticaria) - close-up
Hives (urticaria) on the trunk	Allergies	Antibodies
Allergic reactions	Allergy symptoms	Histamine is released
Intoduction to allergy treatment	The allergic response. (Illustratio...	Common childhood allergies (Table b...
Close-up view of a boy with an alle...	The allergic response. (Illustratio...	Second and subsequent exposure to a...
The allergic response. (Illustratio...	Food allergies can be triggered by ...	Antihistamines can give some relief...

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