What you should know about pollen, allergies and relief

Seasonal allergies, also known as hay fever, affect more than 25 million Americans each year

From: http://redirect.viglink.com?u=http%3A%2F%2Fwww.cbsnews.com%2Fvideos%2Fwhat-you-should-know-about-pollen-allergies-and-relief%2F&key=ddaed8f51db7bb1330a6f6de768a69b8