Eczema can last for a most of a person's life, but there is a good chance you will out grow it before you are eighteen. If you do not outgrow it by the age of eighteen, the odds that you will have it for the rest of your life increase. The good thing is, even if you do not outgrow it symptoms usually lessen the older you are. The worst breakouts are usually when you are very young. Some babies are born with eczema and deal with it a lot during their first years of life. 