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Home > Medical Reference > Encyclopedia (English)

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Allergic reactions - Symptom

Symptoms:

Common symptoms of a mild allergic reaction include:

Symptoms of a moderate or severe reaction include:

  • Cramps or pain in the abdomen
  • Chest discomfort or tightness
  • Diarrhea
  • Difficulty breathing
  • Difficulty swallowing
  • Dizziness or lightheadedness
  • Fear or feeling of apprehension or anxiety
  • Flushing or redness of the face
  • Nausea and vomiting
  • Swelling of the face, eyes, or tongue
  • Weakness
  • Wheezing
  • Unconsciousness
  • Reviewed last on: 4/28/2008
  • 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.

References

Simons FE. Anaphylaxis. J Allergy Clin Immunol. 2008;121:S402-S407.

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