Eczema also called as dermatitis is a long-term skin disorder that involves scaly and itchy rashes. Atopic dermatitis is due to a hypersensitivity reaction (similar to an allergy) in the skin, which leads to long-term swelling and redness (inflammation) of the skin.

Eczema can affect people of any age, although the condition is most common in infants, and about 85% of those affected have an onset prior to 5 years of age. Eczema will permanently resolve by age 3 in about half of affected infants. Eczema most commonly causes dry, reddened skin that itches or burns, although the appearance of eczema varies from person to person and varies according to the specific type of eczema.