Seasonal allergies are becoming more intense for many Americans, and experts say environmental changes may be partly to blame. Pollen from trees, grasses, and weeds is a major trigger, causing symptoms such as sneezing, congestion, and itchy eyes. As growing seasons lengthen, exposure to these allergens may increase, making symptoms more persistent and harder to manage.
Reducing exposure remains one of the most effective ways to control symptoms. Keeping windows closed, changing clothes after spending time outdoors, and showering to remove pollen can help limit contact. Tools like pollen trackers may also help individuals plan outdoor activities when levels are lower.
Over-the-counter treatments, including nasal sprays and antihistamines, can provide relief, though proper use is important for effectiveness. For those with more severe symptoms, medical guidance may be necessary. As allergy seasons continue to evolve, understanding triggers and taking preventive steps may help reduce their impact on daily life.
SOURCE:
NBC News, March 22, 2026