We wanted to investigate if it was possible to improve adherence to prescriptions and advice in pre-school children with newly diagnosed asthma. The intervention was intense information and support in the form of four group discussions with the parents of four children in close connection to diagnosing the child. The control children received the usual care with individual polyclinic visits to the physi-cian/nurse. We evaluated the effect with the help of questionnaires, physical examinations, blood tests, lung function tests and control of treatment adherence after 18 months and 6 years.