Understanding Allergies -- the Basics
The term allergy applies to an abnormal reaction by your immune system to a substance that is usually not harmful. Learn more.
Skin Allergies and Contact Dermatitis: The Basics
Allergic contact dermatitis is an overreaction to something that touches your skin. The result is a red, itchy rash at that spot.
How to Protect Your Eyes During Allergy Season
If seasonal eye allergies are causing too much misery, there are ways to prevent and treat them.
How to Get Relief From Eye Allergies
Red, itchy eyes? Try these treatments and self-help strategies for relief of eye allergies.
Picture of the Sinuses
WebMD's Sinuses Anatomy Page provides a detailed image and definition of the sinuses including their function and location. Also learn about conditions, tests, and treatments affecting the sinuses.
Common fall allergy causes, treatments, and symptoms. Learn more about what triggers allergies in the fall season.
Frequently Asked Questions About Allergies
Get answers to basic questions about allergies, from the most common causes to telling the difference between allergies and the common cold.
9 FAQs About Allergy Relief
What’s the right allergy treatment for you? Get answers from the experts to common questions.
What are food allergies? What happens if you have one? The answers are right here.
Treat the cause of your allergies without getting shots. Oral immunotherapy gets your body used to your allergy triggers.