Atopic dermatitis, a type of eczema, is a chronic skin problem that causes dry skin, intense itching, and a red, raised rash. In severe cases, the rash forms clear, fluid-filled blisters. Atopic dermatitis is more common in babies and children, although adults may develop atopic dermatitis, too. It is not clear what causes atopic dermatitis, but people who have the skin problem often have a sensitive immune system and suffer from allergies and asthma. Follow the links below to find WebMD's comprehensive coverage about atopic dermatitis, what it looks like, how to treat it, and much more.