Food Allergy Symptoms


 

An allergic reaction to food can affect the skin, the gastrointestinal tract, the respiratory tract, and, in the most serious cases, the cardiovascular system. Reactions can range from mild to severe, including the potentially life-threatening condition known as anaphylaxis. In the U.S., food allergy symptoms send someone to the emergency room every three minutes.

Symptoms typically appear within minutes to several hours after eating the food to which you are allergic. Keep in mind that children may communicate their symptoms in a different manner than adults. Read more about how a child might describe a reaction.

 

 

Mild symptoms may include one or more of the following:

  • Hives (reddish, swollen, itchy areas on the skin)
  • Eczema (a persistent dry, itchy rash)
  • Redness of the skin or around the eyes
  • Itchy mouth or ear canal
  • Nausea or vomiting
  • Diarrhea
  • Stomach pain
  • Nasal congestion or a runny nose
  • Sneezing
  • Slight, dry cough
  • Odd taste in mouth
  • Uterine contractions

Severe symptoms may include one or more of the following:

  • Obstructive swelling of the lips, tongue, and/or throat
  • Trouble swallowing
  • Shortness of breath or wheezing
  • Turning blue
  • Drop in blood pressure (feeling faint, confused, weak, passing out)
  • Loss of consciousness
  • Chest pain
  • A weak or “thread” pulse
  • Sense of “impending doom”

Severe symptoms, alone or in combination with milder symptoms, may be signs of anaphylaxis and require immediate treatment.

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