What is the definition or description of: hay fever?

Hay fever : It's an allergic reaction to seasonal pollens and/or molds. There are numerous otc and prescription medications but preventive measures help as well. Close your windows, use allergy-proof bedding and pillow covers, make sure you have a certified hepa vacuum cleaner, avoid scented products, keep pets out of the bedroom, upgrade your furnace filters, get rid of mold.Don't use fabric softeners, etc.

Allergic rhinitis: Hay fever has nothing to do with hay and there is no fever. It is allergic rhinitis. About 20% of people develop rhinitis. Rhinitis is inflammation of the nose due to overactivity of t cells in the nose. Mild irritants will increase symptoms, i.e., irritant rhinitis. In 80% of rhinitis cases there is allergic antibody production so there is also an allergic component, allergic rhinitis.

Pollen allergy: Hay fever, or pollen-induced allergic rhinoconjunctivitis, is a is common (40%), usually self-limited illness, typically associated with seasonally high levels of wind-borne pollen (grass, tree, weed) seen during spring and fall in northern latitudes. Onset typically occurs in childhood or young adulthood, depending on genetics and geographic history, responds well to medication and immunotherapy.