Atopic dermatitis, also known as eczema, is a chronic skin condition that causes repeated episodes of itchy red rashes.
Eczema comes and goes over time. It results in very dry and sensitive skin, and it can be made worse by exposure to many different things, including allergens such as pet dander or dust mites. Other common triggers include soaps, detergents and lotions with heavy fragrances. Exposure to perfumes and cleaning products can also irritate eczema. For some people, weather changes (especially dry winter air) make eczema worse.
Atopic dermatitis is particularly common in infants, and an estimated 10 to 20 percent of children have eczema. It is not contagious and is often hereditary.