Allergic Rhinitis
Allergic rhinitis — often called hay fever — is an allergic response to airborne particles like pollen, dust mites, or pet dander. It affects up to 1 in 4 adults and many children.
Quick Facts
- Type: Allergic disorder
- ICD-10: J30
- Also called: Hay fever
- Common in: Up to 25% of adults
Overview
In allergic rhinitis, the immune system overreacts to harmless inhaled substances (allergens), releasing histamine and other chemicals that inflame the nasal lining. Symptoms can be seasonal (e.g., spring pollen) or year-round (e.g., dust mites, pets).
Symptoms
- Sneezing
- Runny or stuffy nose
- Itchy nose, eyes, or throat
- Watery eyes
- Postnasal drip
- Fatigue
- Reduced sleep quality
Unlike a cold, allergic rhinitis does not cause fever and the discharge is usually clear and watery.
Causes
Common allergens
- Tree, grass, and weed pollens (seasonal)
- Dust mites (year-round)
- Pet dander
- Mold spores
- Cockroach particles
Diagnosis
- History and physical exam (often sufficient)
- Skin prick testing
- Specific IgE blood tests
Treatment
Avoidance
- Track pollen counts; keep windows closed on high-pollen days
- Use dust-mite-proof bedding
- Vacuum with HEPA filtration
- Reduce pet exposure (especially in the bedroom)
Medications
- Intranasal corticosteroids (most effective for moderate-severe symptoms)
- Oral or intranasal antihistamines
- Leukotriene receptor antagonists
- Saline rinses
- Decongestants (short-term only)
Immunotherapy
Allergy shots or sublingual tablets can desensitize the immune system over months to years, providing long-term symptom reduction.
When to See a Doctor
See a doctor if:
- Symptoms interfere with sleep, school, or work
- Over-the-counter medications aren't sufficient
- You are considering immunotherapy
- Symptoms include wheezing or asthma flare-ups
Frequently Asked Questions
Allergies can improve over time, but they often persist into adulthood. Some children outgrow specific food allergies more readily than environmental ones.
Modern, non-sedating antihistamines (loratadine, cetirizine, fexofenadine) are generally safe for daily use. Some people prefer to alternate with intranasal corticosteroids.
Modern intranasal corticosteroids have minimal systemic absorption at normal doses. Local effects (dryness, occasional nosebleeds) are more common.
Despite popular belief, randomized trials have not shown local honey to reliably reduce pollen allergy symptoms.
References
- American Academy of Allergy, Asthma & Immunology. Rhinitis Resources.
- Joint Task Force on Practice Parameters. Allergic Rhinitis Practice Parameter Update.