Hay fever

Also allergic rhinitis. A seasonal allergy to airborne particles characterized by runny/itchy nose and eyes, sneezing, itchy throat, excess mucus, and nasal congestion. It is a misnomer because it is not caused by hay and it

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hay fever 'hā-.fē-vər n an acute allergic reaction to pollen that is usu. seasonal and is marked by sneezing, nasal discharge and congestion, and itching and watering of the eyes called also pollinosis

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a form of allergy due to the pollen of grasses, trees, and other plants, characterized by inflammation of the membrane lining the nose and sometimes of the conjunctiva (see conjunctivitis). The symptoms of sneezing, running or blocked nose, and watering eyes are due to histamine release and often respond to treatment with antihistamine. If the allergen is identified, it may be possible to undertake desensitization. Medical name: allergic rhinitis.

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a type of allergic rhinitis that occurs at the same time every year, marked by acute conjunctivitis with lacrimation and itching, swelling of the nasal mucosa, sneezing, and often asthmatic symptoms. It is regarded as an anaphylactic or allergic condition excited by an allergen such as a pollen to which the individual is sensitized. Called also pollen allergy, seasonal allergic rhinitis, and pollinosis.