A growing number of Americans are allergic to at least one or more common allergy-causing substances, like dust mites, rye grass, and ragweed.

If you are plagued by allergies and youve done all you can to reduce the allergens in your home, an air filter just might help you.

Hay fever sufferers may get better relief from a nasal antihistamine than from an oral antihistamine, a clinical trial shows.

This year, spring allergies have been worst in Lexington, Ky., according to the Asthma and Allergy Foundation of Americas annual ranking. Southeastern cities rank high.

New research suggests that people have become more sensitive to allergies over the last 25 years.

A new therapy may one day allow humans to lick their cat allergies and perhaps even take a bite out of food allergies, a new study suggests.

Immunotherapy, or allergy shots, may keep your allergies at bay long after the shots stop, according to a new study.

Under-the-tongue medications may safely treat allergies in little kids and ease dust mite allergies in adults.

Like to exercise outdoors but have seasonal allergies? Experts tell WebMD how you can take control.

Allergies and asthma may start in your gut. Upset the guts natural mix of helpful bacteria and fungi, and allergies and asthma may develop.