Seasonal allergies, also known as hay fever or allergic rhinitis, are immune responses triggered by exposure to allergens such as pollen, mold, or dust mites that are prevalent during specific times of the year. Individuals with these allergies often experience discomfort during spring, summer, and fall when pollen levels are high.

The body's immune system mistakenly identifies harmless airborne substances as threats, which leads to the release of histamines and other chemicals, resulting in allergic reactions. Understanding seasonal allergies is crucial for managing symptoms and improving quality of life.