Atopic dermatitis (eczema) is an itchy inflammation of your skin. It's a long-lasting (chronic) condition that may be accompanied by asthma or hay fever. Eczema is most often seen in infants and children, but it can continue into adulthood or first appear later in life.
Eczema may affect any area, but it classically appears on your arms and behind the knees. It tends to flare periodically and then subside. The cause of atopic dermatitis, or eczema, is often allergy, especially food allergies. It can also be worsened by an allergy to dust mites. It is common in infants and young children and is often considered the precursor to future asthma and allergic rhinitis. In many patients the triggers are unclear.
Self-care measures, such as avoiding soaps or other irritants and applying creams or ointments, can help relieve itching. See your doctor if your symptoms distract you from your daily routines or prevent you from sleeping.