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what are nasal allergies | |
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causes & symptoms | |
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treating nasal allergies | |
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pollen pointers | |
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glossary | |
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expert Q & A | |
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Pollen can be a real pest if you have nasal allergies. And it’s tough to avoid during peak pollen seasons. Knowing when different parts of the country experience pollen seasons might help when you’re planning vacations or outdoor activities. This section covers details about pollen and when and where it’s at its worst. pesky pollen Are your nasal allergy symptoms worse at certain times of the year? The reason is probably plant pollen, which can cause allergies and irritate your airways. When you are exposed to pollen, your body responds by creating a defense called antibodies, which attach themselves to special cells in the nose and airways called mast cells. In turn, the mast cells produce and release chemicals that cause nasal allergy symptoms like sneezing and a stuffy, runny, itchy nose. While you can't avoid pollen entirely, the following facts might help you weather the seasons better:
In North America, weeds such as ragweed are the most common sources of problematic pollen. A single ragweed plant can generate one million grains of pollen a day. Some common grasses in North America that cause allergic reactions are timothy grass, Kentucky bluegrass, Johnson grass, redtop grass, orchard grass, and sweet vernal grass. North American trees that produce allergenic pollen include oak, ash, elm, hickory, pecan, box elder, and mountain cedar. Here is a breakdown of peak pollen seasons in the continental United States. Check out your regional pollen count and refer to it when planning a trip.
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