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?

If you're sensitive to pollen, you might notice that your allergies are particularly bad right now. You're not alone, medical experts say. There are three periods every year when different types of ...

Allergy season is here — and it’s earlier and stronger than expected. More than 80 million Americans deal with itchy eyes, runny nose and other symptoms of seasonal allergies, according to the Asthma ...

Allergy symptoms depend on the type of allergy but may include sneezing, itchy skin, or swelling. Some allergies can cause anaphylaxis, which can be life threatening and requires immediate treatment.

The results of a pilot study suggest that long-term exposure to higher pollen levels leads to worse symptoms and quality of ...