At some points during the year, as much as 20 percent of the population struggle with allergies. Check out this article to learn when is one of the worst time for allergies and what triggers them!
Late Summer and Fall (August to December):
A fresh allergen, ragweed, is starting to make its way across the U.S. by the middle of summer. According to the Centers for Disease Control, ragweed, which is actually a flowering plant found near river banks, is the leading cause of allergies, with three-fourths of all sufferers allergic to it. This scourge of sneezers starts to pop up during the latter half of July. The Southeast is usually the first to be subjected to the ragweed pollen season, as it thrives in its hot and humid climate. By late August, ragweed rapidly expands its territory north- and westward, and residents throughout the eastern two-thirds of the U.S. will be feeling itchy and watery eyes.
Ragweed season, and along with it the pollen season, comes to an end as the fall frosts arrive. As nighttime temperatures drop into the 20s, the ragweed plant is unable to survive the chilly conditions. This occurs from north to south, slowly but surely, from September to November. The cooler days, however, lead to a second season of grasses, which are able to wake from their dormancy, spreading their pollen across the Southwest and along the Gulf Coast during October and early November.
The shorter days limit the length of this grass season and they enter another short dormancy before Thanksgiving. Christmas season provides nearly the entire U.S. with another blessing: there are very few outdoor allergens in the environment. However, as soon as the calendar flips to a new year, the cycle starts all over again.