Eczema (you say, ex-ma) is also known as dermatitis (you say, der-ma-ty-tis). Eczema is not an infection. Your child cannot give eczema to another child. Your child cannot get eczema from another child. Eczema is patches of dry itchy skin that become red. In children eczema is common behind the knees and on arms, hands, neck and face. Sometimes children stop getting eczema when they get older.