Eczema is a general term representing a range of irritated, rash, inflamed skin problems. It also goes by the name contact dermatitis, atopic dermatitis, irritant dermatitis, and allergic dermatitis. By any name, approximately 10% to 20% of the world population is affected by this chronic, relapsing and very itchy rash at some point during childhood and into adulthood, although it tends to get better as you get older.

What Causes Eczema?

The exact cause of eczema is unknown, but it's thought to be linked to an overactive response by the body's immune system to unknown triggers.

Eczema is commonly found in families with a history of other allergies or asthma.

Some people may suffer "flare-ups" of the itchy rash in response to certain substances or conditions. For some, coming into contact with rough or coarse materials may cause the skin to become itchy. For others, feeling too hot or too cold, exposure to certain household products like soap or detergent, or coming into contact with animal dander may cause an outbreak. Upper respiratory infections or colds may also be triggers. Stress may cause the eczema condition to worsen.

Although there is no cure, most people can effectively manage eczema with medical treatment and by avoiding irritants. Eczema is not contagious and can't be spread from person to person.