So you're out at a picnic at a beautiful meadow. The air smells of honeysuckle and a soft breeze blows, lifting your hair away from your face. You inhale deeply to take in the rich countryside air and... start sneezing.1... 2... 5... 10! They just won't stop. Before long, your face turns red, your eyes water, your nose starts running, and you feel itchy all over. Why did that happen? It was most definitely an allergic reaction, probably due to the pollen in the air.