As a result, mountain cedar pollen can cause severe symptoms, including congestion, sneezing, itchy or watery eyes, sinus pressure, sore throat, and fatigue. Symptoms often feel like a cold or flu, ...

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?

After a weekend of very high tree pollen counts and cedar fever, this week might not be as bad. Here's what you can do if you ...