Seasonal allergies affect many people each year, especially in spring and summer when plants release pollen into the air. In the United States, health groups report more allergy cases because warmer weather makes plants grow longer. This leads to more pollen in the air and causes symptoms such as sneezing, coughing, and itchy eyes. The Asthma and Allergy Foundation of America says that cities like Boise, Tulsa, and Rochester have high allergy levels. Experts say climate change makes allergy seasons longer by helping plants grow more. Tree pollen from oak and birch is a common cause of allergies.

Experts give advice to reduce allergy symptoms. People should try to avoid pollen by keeping windows closed and wearing long sleeves outside. It is also helpful to change clothes and take a shower after going outdoors. Doctors say nasal sprays can help when used correctly. Allergy pills can also help, but they may work more slowly. Some new treatments help the body react less to allergens over time. Pollen tracking tools give daily information, so people can decide the best time to go outside.