Migraine is the second leading cause of years lived with disability. Patients with chronic migraine (CM) face enormous barriers in accessing care and in receiving an accurate diagnosis and appropriate treatment. This article reviews the following: epidemiology, definition, pathophysiology, medication overuse, and acute and preventive treatment.
Keywords: CGRP antagonists; Chronic migraine; Headache; Migraine; OnabotulinumtoxinA; Preventive treatment.
Copyright © 2022 Elsevier Inc. All rights reserved.