(AP) — Allergy season can be miserable for tens of millions of Americans when trees, grass, and other pollens cause runny noses, itchy eyes, coughing and sneezing. Where you live, what you’re allergic ...
Did you know that a single ragweed plant can produce one billion grains of pollen in a season? Or that most pollen that causes allergy problems is so small that it is invisible to the human eye?
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