This randomized open-label prospective study focus on headache patients initiating preventive treatment, where the treating physician identifies a need for follow-up visits in specialized healthcare. The study will clarify whether the implementation (compliance) and overall satisfaction of the patient are better with follow-up by a headache nurse compared to standard follow-up. Patients with signed written consent will be randomised to either group a: Telephone calls from nurse after two and 6 week or B. Patient-initiated follow-up by their general practitioner.