Advertisement
Skip navigation links
Types of Allergies
Allergy Symptoms
Allergy Treatment
Children and Allergies
Seasonal Allergies
Anaphylaxis
Be SAFE
Facts
Epinephrine
Other Resources
Management
Minimize Risk
Emergency Conditions
Specialist Care
Symptoms
Action Plan
Who Has Allergies and Why
Find an Allergist
ACAAI > Patients & Public > Allergies > Anaphylaxis

Anaphylaxis Symptoms and Reactions

Anaphylaxis symptoms occur suddenly and can progress quickly. The early symptoms may be mild, such as a runny nose, a skin rash or a "strange feeling." These symptoms can quickly lead to more serious problems, including:

  • Trouble breathing
  • Hives or swelling
  • Tightness of the throat
  • Hoarse voice
  • Nausea
  • Vomiting
  • Abdominal pain
  • Diarrhea
  • Dizziness
  • Fainting
  • Low blood pressure
  • Rapid heart beat
  • Feeling of doom
  • Cardiac arrest

People who have had a severe allergic reaction are at risk for future reactions. Even if your first reaction is mild, future reactions might be more severe. That's why it's important to carry self-injectable epinephrine if you are at risk.

Understanding anaphylaxis and the things that can trigger this severe allergic reaction will help you manage your condition. Ask an allergist for more information about testing, diagnosis and a disease management plan.

Insect Allergy Information

Learn more about insect allergies, including methods to avoid insect bites, treatment options, and more.

Learn More »

Food Allergy Information

Learn more about how to manage and treat your food allergy symptoms.

Learn More »

Drug Allergy Information

Learn more about your drug allergy, including information on how to manage the condition.

Learn More »