Why are fall allergies so bad?

Bad for you: They're bad for you. Spring allergies are bad for others. Luckily we've got second generation antihistamines that are over the counter that work well without many of the side effects of earlier versions.

May be ragweed: In many parts of the U.S., ragweed is the most common cause of fall pollen allergy. Ragweed pollen is spread through the air, and is too small to be seen with the naked eye. The pollen is highest during the morning hours, on windy days, or shortly after raining. Ragweed grows in lots of places, especially in fields along the sides of highways.

Fall allergies: I agree with the other doctors that ragweed is a common cause of fall allergies. Mold is another big one. It also has a lot to do with what you're body is sensitive to. For treatment, there are some great non-sedating antihistamines, and i also like to add a nasal corticosteroid - especially if the overwhelming symptom is a runny nose, and less so the itchy/watery eyes.

Fall allergies : Fall is when most weeds pollinate heavily, and some falls are worse than others because the weather that summer favored high pollen production. In the southwest, we have cedar elm trees that pollinate in august-september and fall-pollinating juniper bushes as well. Throw in a wet day or two, and grasses will spring into action just to top it off. So it's genetics, geography and weather. Mold too!

Lots of reason: Fall allergies typically are the result of ragweed, alternaria and other regional allergens. When a season is particularly bad it may be the result of a particularly "bad" pollen season, meaning high or higher than normal pollen counts. It may also be the result of one's allergies that are worse and not responding to current medical therapy.

Ragweed & Mold: Allergy problems are often worse in the fall because of weed pollen such as ragweed. In addition, mold is worse in the fall because decaying plant material such as all summer's grass clipping and falling leaves. Ragweed is a potent allergen for those who are allergic to it and can cause fairly severe symptoms. The combo of weed pollen and mold is a double whammy.