An allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the ...

Get the facts about allergic reactions, causes, allergy types (food, dust, mold, seasonal), symptoms and signs (skin rash, itching, red bumps, sneezing).

Pollen.com - Click on the current allergy forecast USA Map to get your local allergy report. Track you allergies with MyPollen, check past allergy levels, and more ...

An allergy is an exaggerated immune response or reaction to substances that are generally not harmful. Allergies are pretty common. Both genes and ...

Up to 50 million Americans, including millions of kids, have an allergy. Find out how allergies are diagnosed and how to keep them under control.

Allergies affect nearly 20% of Americans. Here you'll find in-depth allergy information including treatments

An 'allergy' is a hypersensitivity to a particular substance that is normally harmless to most people. These allergy-causing substances are known as...

A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological ...

Sneezing, difficulty breathing, cramps, and vomiting–all are allergy symptoms. Learn the types of allergies, specific allergy symptoms, and emergency warning signs.

An allergy is a reaction of your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one ...

Get prescription-strength allergy relief from indoor and outdoor allergies—without a prescription. Allegra, now over-the-counter (OTC), provides fast,* 24-hour ...

Allergies — Comprehensive overview covers allergy symptoms, allergy testing, treatment of an allergic reaction.

Allergies are a condition that occurs when the immune system mistakenly identifies a substance as harmful to the body. These substances can range from things people ...

An allergy or allergic reaction is an abnormal immune system response to certain stimuli, like food ingredients or dust. Seasonal allergy symptoms are generally ...

Allergy information includes articles on allergies, symptoms, treatment, medications, food allergies, and allergy relief.

Learn whether allergy shots can help you deal with your allergies.