What is atopic dermatitis (eczema)?
Atopic dermatitis is a chronic (long-lasting) disease that affects the skin. The word “dermatitis” means inflammation of the skin. “Atopic” refers to a group of diseases that are hereditary (that is, run in families) and often occur together, including asthma, allergies such as hay fever, and atopic dermatitis. In atopic dermatitis, the skin becomes extremely itchy and inflamed, causing redness, swelling, cracking, weeping, crusting, and scaling. Atopic dermatitis most often affects infants and young children, but it can continue into adulthood or first show up later in life.