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What Is Eczema?

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Eczema is a word for several kinds of skin swelling. It is also called dermatitis. It often causes dry, itchy skin and a rash on the face, inside the elbows, behind the knees, and on the hands and feet. Scratching can make the skin red, more swollen, and itchier.

What It Means

Eczema is not contagious, so you cannot catch it from someone else. The cause is not known, but it may be related to both genes and things in the environment. It can get better or worse over time, and it is often a long-lasting condition.

When to Contact a Doctor

A doctor can help with treatment options, which may include medicines, skin creams, light therapy, and good skin care. It can also help to talk with a doctor about possible triggers, like certain soaps, fabrics, lotions, stress, or things you are allergic to.

The most common type is atopic dermatitis. It is most common in babies and children, but adults can have it too. Some children get better as they grow older, but the skin may stay dry and easy to irritate.

Sources

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This service provides general medical information and education. It does not diagnose medical conditions or replace care from a physician or other qualified healthcare professional. If you may be experiencing a medical emergency, call 911.

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Medical disclaimer: AskMyDoctor AI provides general medical information and education. It does not diagnose medical conditions or replace care from a physician or other qualified healthcare professional. Information is drawn from public U.S. government medical sources and may not fit your personal situation. If you may be experiencing a medical emergency, call 911.

Medical answers are independent and are never influenced by advertisers. Sources include MedlinePlus (National Library of Medicine), the U.S. Food and Drug Administration (openFDA), and RxNorm. © 2026 AskMyDoctor AI.