Jacob Thyssen has worked in Dermatology for 10 years and holds PhD and DmSci degrees from the University of Copenhagen. He has published 190 articles and 10 book chapters. He has received international awards for his research, including the LEO Pharma Research Foundation for best investigator 45 years in the Nordic countries. His research has focused on dermatitis, allergies, and the skin barrier. He has been a research fellow in the USA, visiting Harvard Medical School and UCSF. He is a regular speaker at international meetings. Jacob Thyssen enjoys treating patients with dermatitis on a daily basis in the Gentofte Clinic in Copenhagen, Denmark.