migraines and cluster headaches
Nearly 92 million people worldwide suffer from migraines and cluster headaches.
Only 45% are diagnosed and 19 million patients are victims of severe forms (source anaes recommendations 2012).
Cluster headaches are characterized by acute pain felt on one side of the face only, most often around one eye. This pain occurs in attacks, between which can take several weeks. In about 10% of cases, cluster headaches can become chronic.