Hay Fever

Hay fever (seasonal allergic rhinitis) is IgE-mediated nasal allergy to tree/grass/weed pollen, presenting with paroxysmal sneezing, nasal congestion, clear rhinorrhea, itchy nose/eyes/palate, and conjunctivitis during pollen season. Treatment: allergen avoidance; oral/intranasal antihistamines; intranasal corticosteroids; leukotriene receptor antagonists; eye drops for allergic conjunctivitis; allergen immunotherapy for persistent/moderate-severe; monitor asthma.

Common Symptoms

Paroxysmal sneezing; congestion/rhinorrhea; itchy nose/eyes/palate; seasonal pollen

Causes and Pathogenesis

Pollen allergen cross-links IgE on mast cells, causing histamine release and nasal allergy.

Treatment

Allergen avoidance; antihistamines/intranasal steroids; immunotherapy for persistent

Preventive Measures

Track pollen; close windows; shower after outdoor; immunotherapy.

Department to Visit

It is recommended to visit the Allergy/ENT department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.