Abstract
SUMMARYCluster headache is characterised by attacks of very severe, unilateral headache lasting 15–180 minutes, up to eight times per day. The attacks are associated with cranial autonomic symptoms on the same side and a sense of agitation or restlessnessFirst-line acute abortive treatments include intranasal or subcutaneous sumatriptan or high-flow oxygen. Neuromodulation may benefit some patientsFirst-line preventive therapy is high-dose verapamil. Close monitoring is required for the adverse effect of arrhythmiaThere are several emerging therapies that have either proven efficacy, or possible benefit for cluster headache. They include drugs aimed at the calcitonin gene-related peptide
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