Food Allergy

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Signs and Symptoms

Food allergy symptoms vary and can range from mild to severe. An allergic reaction to food usually develops within minutes to 1 hour and can last hours, days, or even longer.

Common food allergy symptoms include the following:

Changes in behavior (e.g., irritability)
Diarrhea
Facial swelling
Flushing (sudden feeling of warmth and reddening of the skin)
Hives (urticaria)
Itching (often involving the lips, tongue, mouth, throat, nose, and eyes)
Nasal conges...Read the full article