Cognitive-behavioral issues in the treatment and management of chronic daily headache.

Chronic daily headache is a heterogeneous group of daily or near-daily headaches that afflicts close to 5% of the general population and accounts for close to 35% to 40% of patients at headache centers. First-line drug or cognitive-behavioral therapies administered alone have minimal impact on reducing the frequency or severity of headaches. However, combined drug and cognitive-behavioral therapy shows promise in providing the most benefit for this often intractable condition. Cognitive-behavioral therapies focus on preventing mild pain from becoming disabling pain, improving headache-related disability, affective distress, and quality of life, and reducing overreliance on medication. For cognitive-behavioral therapies to be effective, it is important to address complicating factors, including medication overuse, psychiatric comorbidity, stress and poor coping, and sleep disturbance.