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.
Control Food Allergies at School
When a Cold Won't Go Away
Treating Poison Ivy
When Sinusitis Affects Children
'Off-Roading' Threat May Lurk in the Air
Dirty Air Might Harm Your Kidneys
When a Cold or Flu Strikes a Family Member
Asthma Drug Tied to Nightmares, Depression
Could Pests, Dust Lower Kids' Odds for Asthma?
Chlorine + Pee = Breathing Trouble for Waterpark Workers