An allergy is a disorder of the immune system that causes symptoms, such as sneezing, itchy and watery eyes, and a runny nose. Allergens are the stimuli that cause these allergy-related symptoms.
Considering a Humidifier?
When Air Is Unhealthy
What's Behind That Cough?
Air Pollution Can Harm Your Health
Are You Allergic to Latex?
Wildfires May Boost Ozone Levels in Cities: Study
Allergies, Asthma Tied to Lower Risk of Brain Cancer
Waning Whooping Cough Immunity Blamed in Outbreaks
Legionnaires' Disease Can Transmit Person-to-Person, Case Suggests
For Super Bowl Fans, Flu Can Be an Unwanted Catch
Less Than Half of U.S. Babies Receive Flu Vaccine: CDC