Eczema and atopic dermatitis are medical terms, sometimes used interchangeably, that describe irritation and inflammation of the skin. Eczema is characterized by symptoms including redness, swelling, itching, crusting, flaking, blistering, cracking, or oozing of the skin. Atopic dermatitis is a recurring condition in which people have eczematous changes in their skin associated with itching and dry skin. Often, patients with atopic dermatitis have a personal or family history of asthma and/or seasonal allergies.