It is important for COPD patients is to prevent exacerbations of the disease, which sometimes requires hospitalization and sometimes treated by their own doctor. It has been proven that inflammation in the lungs is associated with disease severity and exacerbation frequency, and therefore we would like to investigate whether both rehabilitation, close monitoring of patients with time in the pulmonary clinic every 3 months, and instruction in self-administration of medication (antibiotics and corticosteroids) have an effect on especially inflammation in the lungs, number of exacerbations, mortality, lung function and walking capacity.