This study is the first study in New Zealand looking at the relationship between the home environment, eczema and serious skin infection in young children. This study will utilise Growing Up in New Zealand data to examine whether the home environment increases the risk of developing eczema in young children, and in those with eczema, it is associated with an increased risk of serious skin infection. The results will help guide future efforts to improve household environment to reduce the burden of eczema and serious skin infection in New Zealand children.