Anaphylaxis is a rare, severe allergic reaction that is life-threatening. The most common allergic triggers of anaphylaxis include drugs (such as penicillin), insect stings, foods (peanuts, shellfish), X-ray dye, and latex. Symptoms and signs can vary and begin either immediately after contact with the allergen or after a short time period (15 minutes to an hour). Hives, difficulty breathing, a feeling of impending doom, and reduced blood pressure are among the symptoms and signs that can occur. The severity of symptoms and signs varies among people; the more rapid the onset of symptoms and signs, the greater the likelihood of a severe reaction.
Other anaphylaxis symptoms and signs
- Chest Tightness
- Difficulty Breathing
- Difficulty Swallowing
- Feeling of Doom
- Loss of Consciousness
- Low Blood Pressure
- Pale Skin
- Rapid Heart Rate
- Reddened Skin
- Runny Nose
- Sense of a Lump in the Throat
- Stomach Cramps
Main Article on Anaphylaxis Symptoms and Signs
Pictures, Images, Illustrations & Quizzes
Common Allergies: Symptoms and Signs
What are allergies? Pollen, food, perfumes, and many more things can provoke allergy symptoms. Allergies are an overreaction of...
Nasal Allergy Attack: Causes, Triggers, Treatments
Nasal allergies are a common problem that affects millions of people. An allergist can recommend the best allergy nasal sprays...
Out-of-Control Allergy Symptoms: Treatment Relief in Pictures
Learn 10 signs your allergies are out of control. See these surprising allergy symptoms and find out how to get relief for...
The Most Common Food Allergies for Kids and Adults
What common food allergens cause the most problems for adults and children? See this list of common food allergies and learn to...