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- 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)
- Allergic shock (anaphylaxis)
- Where are allergens?
- In the Air We Breathe
- In What We Ingest
- Touching Our Skin
- Injected Into Our Body
In the Air We Breathe
Aside from oxygen, the air contains a wide variety of particles including allergens. The usual diseases that result from airborne allergens are hay fever, asthma, and conjunctivitis. The following allergens can trigger allergic reactions when inhaled by sensitized individuals.
- Pollens from trees, grasses, and/or weeds
- Dust mites
- Animal proteins including dander, skin, and/or urine
- Mold spores
- Insect parts, especially from cockroaches