Psychoactive substances as a last resort-a qualitative study of self-treatment of migraine and cluster headaches.

Background: Treatment resistant cluster headache and migraine patients are exploring alternative treatments online. The aim of this study was to improve comprehension regarding the use of non-established or alternative pharmacological treatments used by sufferers of cluster headaches and migraines.

Methods: A qualitative thematic analysis of the users' own accounts presented in online forum discussions were conducted.