ABSTRACT
The clinical course of migraine is such that periods of exacerbation tend to resolve spontaneously without intervention. No prophylactic drug provides more than 50% improvement-as effective as identification and avoidance of trigger factors. Therefore, trigger factors should always be considered first (see the chapter: ‘Who gets migraine and why?’). If prophylactic drugs are prescribed, their continued need should be assessed at each follow-up visit.
