Overview & facts
Spring goes into full bloom, yet you’re in real misery. Others fight battles with certain foods, chemicals, or airborne particles. What causes these reactions?
What are allergies?
This article explains the basics of an allergic reaction. Learn what happens when your immune system goes on high alert.
Learn more about the anatomy of your sinuses.
Frequently asked questions about allergies.
Almost anything can trigger an allergic reaction.
The air you breathe, whatever touches your skin, anything you put in your mouth – it’s all got potential for causing an allergy.
Find out more about chronic allergies and their causes.
Other names for multiple chemical sensitivity are "environmental illness" or "sick building syndrome". Learn more about MCS.
Take steps to identify and avoid your allergy triggers and find out how to prevent a serious reaction.
Learn more about eye protection and allergies.