Pollen is one of the most common allergens in the United States. Over 67 million people suffer from allergies, and of those 67 million, 81% say they are allergic to pollen.
What's Behind Nasal Congestion
What's Causing My Earache?
When Air Is Unhealthy
Coping With Hives
Things That May Trigger Wheezing
Much-Maligned Pigeon May Be a Lead Detective
Does Living Near a Fracking Site Make Asthma Worse?
How to Spot the Warning Signs of Heat Stroke
Why Being Cold Might Foster a Cold
Allergies Less Common in Kids Who Suck Thumb, Bite Nails
London's Great Smog of 1952 Linked to Asthma Surge