If you suffer from seasonal allergies, you are not alone. Twenty percent of the US population (about 50 million people) make over 10 million visits to doctors every year for this common concern. Multiple factors conspire to create the dreaded days of runny noses, itchy and watery eyes, relentless sneezing, scratchy throats and just generally not feeling up to snuff. Unfortunately many of the over-the-counter medicines can create annoying side effects such as drowsiness, insomnia, headache, dizziness and upset stomach.