Introduction

Eczema is a chronic, inflammatory skin disorder. It can appear as blisters that crust over to become scaly, itchy rashes, or as dry, thick patches of skin with scales. The main symptom is itching, and symptoms can come and go. Although eczema is not contagious, it is very common. People with eczema often have a personal or family history of allergies. There is no cure, however, treatments can reduce symptoms and help prevent outbreaks.

The most common signs of eczema are:

Eczema in children under 2 years old generally starts on the cheeks, elbows, or knees. In adults, it tends to be found on the inside surfaces of the knees and elbows.

Researchers do notknow for sure what causes eczema. It may be a combination of hereditary (genetic) and environmental factors. In some people, allergies may trigger eczema. Exposure to certain irritants and allergens can make symptoms worse, as can dry skin, exposure to water, temperature changes, and stress.

Stress can make eczema worse. Other irritants that can make eczema worse include:

Wool or synthetic fibers

Certain soaps and detergents, as well as perfumes and some cosmetics

Dust or sand

Cigarette smoke

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Eczema | University of Maryland Medical Center