Professor Graham Ogg talks about the role of our skin as a barrier against infection. Skin frequently represents the first point of contact with pathogens and allergens, but there is still very little known about the role of the surface immune system in fighting unwanted invaders. Barrier dysfunction can lead to the development of eczema. Understanding these mechanisms can help us develop new treatments targeting the skin, as well as the inflammatory response. Dr Graham Ogg aims to understand the role of skin immune responses by studying common skin diseases and infections.