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What are symptoms of anaphylaxis (anaphylactic shock)?

Anaphylactic shock causes the sudden onset of severe symptoms that may involve different parts of the body. These symptoms can include hives, difficulty breathing or swallowing, chest tightness, diarrhea, light-headedness, palpitations, throat swelling, wheezing, nausea or vomiting, swelling of the eyes or face, and nasal congestion, anxiety, and pale color. 

Signals of anaphylaxis include:

  • A rash 
  • Tightness in the chest and throat 
  • Swelling of the face, neck and tongue 
  • Dizziness or confusion

Anaphylaxis is a life-threatening emergency.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.