title: Headache Recurrence and Treatment.
abstract: The definition of recurrence includes the following: any headache occurring after a headache-free state at 2 hours and within 24 hours after intake of drug; a headache that has never been studied systematically; a headache that may not be an outcome of drug treatment; a headache that may be due to the inherent nature of migraine and individual patient characteristics such as duration of attack; and headache for which effective treatment may be a re-dose of the initial medication or addition of steroidal or nonsteroidal anti-inflammatory medications.
authors.affiliation: Swedish Neuroscience Institute, Swedish Headache Center, 1221 Madison, Suite 1026, Seattle, WA 98116, USA. sheena.aurora@swedish.org
authors.forename: Sheena K.
authors.initials: SK
authors.lastname: Aurora
authors.forename: John
authors.initials: J
authors.lastname: Dempsey