img

Allergy Public History

Health Topic Groups: Ear, Nose and Throat, Immune System

Medical Subject Headings (MeSH): Hypersensitivity

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 thing. Substances that often cause reactions are

How do you get allergies? Scientists think both genes and the environment have something to do with it. Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm.

Allergies can cause a runny nose, sneezing, itching, rashes, swelling or asthma. Symptoms vary. Although allergies can make you feel bad, they usually won't kill you. However, a severe reaction called anaphylaxis is life-threatening.

NIH: National Institute of Allergy and Infectious Diseases

SOURCES
External Resources

Prevention and Risk Factors

Journal Articles

Health Check Tools

Specifics

NIH MedlinePlus Magazine

Related Issues

Patient Handouts

Encyclopedia

Diagnosis and Tests

Treatments and Therapies

Videos and Tutorials

Start Here

Latest News

Genetics

Statistics and Research

Children

Find an Expert

Teenagers

Clinical Trials

Specific Conditions

Prevention/Screening

Treatment

Diagnosis/Symptoms

Newsletters/Print Publications

RELATED Health Topics

RELATED BLOGS

Leave a comment