p>During allergy season, sufferers know the drill: runny nose, watery eyes, sneezing up a storm. If you also have asthma, symptoms might also include coughing and wheezing. Then there's the common cold, which also presents with similar symptoms. So what's causing your runny nose? In this eBook, Allergies, Asthma and the Common Cold, we review what we know about these three conditions as well as take a look at food allergies and what's on the horizon for allergy treatment and prevention.