Anaphylaxis is a severe and potentially life-threatening allergic reaction that can occur after exposure to an allergen. Anaphylaxis is a medical emergency that requires immediate treatment.

Symptoms of anaphylaxis can occur quickly after exposure to an allergen and may include difficulty breathing, difficulty swallowing, chest tightness, hives, swelling of the face, lips, tongue, and throat, nausea, vomiting, abdominal cramps, and diarrhea. Anaphylaxis can also cause a rapid or weak pulse, confusion, anxiety, and loss of consciousness. In some cases, anaphylaxis can lead to shock, which can be life-threatening. If you suspect that someone is experiencing anaphylaxis, call 911 or your local emergency number immediately.

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What is Anaphylaxis Shock