Eczema is a term for a group of medical conditions that cause the skin to become inflamed or irritated. No matter which part of the skin is affected, eczema is almost always itchy. Affected areas usually appear very dry, thickened, or scaly. In fair-skinned people, these areas may initially appear reddish and then turn brown. Among darker-skinned people, eczema can affect pigmentation, making the affected area lighter or darker. The goal of treatment for eczema is to relieve and prevent itching, which can lead to infection. Since the disease makes skin dry and itchy, lotions and creams are recommended to keep the skin moist. These products are usually applied when the skin is damp, such as after bathing, to help the skin retain moisture.