Fall is a great time to get outside and enjoy cooler temperatures and changing leaves. Unfortunately, for people with seasonal allergies, fall means sneezing, congestion, itchy eyes, and other uncomfortable symptoms. An allergic reaction occurs when your immune system mistakes a normally harmless substance for something harmful and responds to it, trying to remove it from your system. These allergens can be inhaled, eaten, or encountered through contact. Seasonal allergies are triggered by different types ...