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).

An allergy is an exaggerated immune response or reaction to substances that are generally not harmful.

Read about allergic reaction causes, treatment and prevention. Allergy symptoms and signs include swelling, hives and rashes, and severe reactions may cause anaphylaxis.

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.

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

An allergy is an overcompensation of the body’s immune system when confronted with the protein of a food, a drug (such as penicillin), a bee sting or an airborne ...

Considerations. Allergic reactions are common. The immune response that causes an allergic reaction is similar to the response that causes hay fever.

Your eyes itch, your nose is running, you're sneezing, and you're covered in hives. The enemy known as allergies has struck again.

Find out what an allergy is and what are the possible treatments.

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 overview of allergies: symptoms, diagnosis, treatment and management written and reviewed by leading experts in allergy, asthma and immunology.

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

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

Find out how to tell if your child has allergies and what you can do to treat or prevent allergies in children.

The American Academy of Allergy, Asthma & Immunology (AAAAI) is an international professional organization with more than 6,500 members who have an a special interest ...