Seasonal Allergies/Hay Fever

The amount of pollen in the air can affect whether hay fever symptoms develop. Hot, dry, windy days are more likely to have increased amounts of pollen in the air. On cool, damp, rainy days most pollen is washed to the ground.

Hay fever is an allergic response to pollen (the male component of the plant reproductive system) or other microscopic substances that are present only at certain times of the year. Allergic rhinitis can also be perennial (year-round).

Histamine is released when the body is exposed to the allergen and causes inflammation of the sinuses, nose, and mucus membranes of the eyes. The swelling blocks the allergen from entering the body and sneezing is the body’s attempt to expel the allergen. 

Pollinating trees in spring are primarily responsible for causing allergic rhinitis. During the summer months, pollen is produced by weeds and grasses.  Ragweed is primarily to blame in the fall.  Mold spores, usually present from late March until Novemeber can also cause allergic rhinitis.  Many people are allergic to multiple pollens.

Some disorders may be linked to allergies including eczema and asthma. Whether or not you are likely to develop allergies is often passed down genetically.