Table of Contents
- Allergy facts
- Allergy overview
- What is an allergy?
- What is an allergy? (Continued)
- What causes allergies?
- What causes allergies? (Continued)
- Who is at risk for allergies and why?
- What are common allergic conditions, and what are allergy symptoms and signs?
- Allergic rhinitis (hay fever)
- Allergic eyes (conjunctivitis)
- Eczema (atopic dermatitis)
- Hives (urticaria)
- Where are allergens?
- In the Air We Breathe
- In What We Ingest
- Touching Our Skin
- Injected Into Our Body
Quick GuideAllergy: What Happens in a Nasal Allergy Attack
Injected Into Our Body
The most severe reactions often occur when allergens are injected into the body and gain direct access to the bloodstream. This intravenous access carries the increased risk of a systemic reaction, such as anaphylaxis. The following are commonly injected allergens that can cause severe allergic reactions:
Fiocchi A, Assa'ad A, Bahna S; Adverse Reactions to Foods Committee; American College of Allergy, Asthma and Immunology. Food allergy and the introduction of solid foods to infants: a consensus document. Adverse Reactions to Foods Committee, American College of Allergy, Asthma and Immunology. Ann Allergy Asthma Immunol. 2006 Jul;97(1):10-20; quiz 21, 77.
Price D, Bond C, Bouchard J, Costa R, Keenan J, Levy ML, Orru M, Ryan D, Walker S, Watson M. International Primary Care Respiratory Group (IPCRG) Guidelines: management of allergic rhinitis. Prim Care Respir J. 2006 Feb;15(1):58-70. Epub 2005 Dec 27.
American College of Allergy, Asthma, & Immunology. Food allergy: a practice parameter. Ann Allergy Asthma Immunol. 2006 Mar;96(3 Suppl 2):S1-68. No abstract available.
Flinterman AE, Pasmans SG, Hoekstra MO, Meijer Y, van Hoffen E, Knol EF, Hefle SL, Bruijnzeel-Koomen CA, Knulst AC. Determination of no-observed-adverse-effect levels and eliciting doses in a representative group of peanut-sensitized children. J Allergy Clin Immunol. 2006 Feb;117(2):448-54.
Scibilia J, Pastorello EA, Zisa G, Ottolenghi A, Bindslev-Jensen C, Pravettoni V, Scovena E, Robino A, Ortolani C. Wheat allergy: a double-blind, placebo-controlled study in adults. J Allergy Clin Immunol. 2006 Feb;117(2):433-9.
Medically Reviewed By: Ellen Reich, MD, Board Certified in Allergy and Immunology, Board Certified in Pediatrics and Michael Manning, MD, of the American Board of Allergy and Immunology.
2. Charles Daghlian, Getty Images/ScienceFoto, iStock
5. MedicineNet, iStock
13. Mikael Häggström
14. Dartmouth Electron Microscope Facility, Dartmouth College
15. iStock, Getty Images, iStock
16. Getty Images/Hemera
17. iStock, Color Atlas of Pediatric Dermatology Samuel Weinberg, Neil S. Prose, Leonard Kristal Copyright 2008, 1998, 1990, 1975, by the McGraw-Hill Companies, Inc. All rights reserved.
18. iStock, Pollinator
Subscribe to MedicineNet's Allergy and Asthma Newsletter