Migraine is that the most typical disabling brain disease. Chronic hemicrania, a condition characterised by the expertise of migrainous headache on a minimum of fifteen days per month, is extremely disabling. Patients with chronic hemicrania gift to medical aid, square measure typically referred for management to secondary care, and compose an oversized proportion of patients in specialist headache clinics. several patients with chronic hemicrania even have medication overuse, outlined as employing a compound analgesic, opioid, triptan or ergot spinoff on a minimum of ten days per month [1]. All doctors can encounter patients with chronic headaches, there's currently no excuse for either of those factors to impact upon the management of those patients. once assessing a patient with chronic headaches (that is, by definition, headaches on a minimum of fifteen days per month), it's vital from the commencement to determine however the headaches originally developed. There is square measure 2 typical patterns. In one set of cases, patients with a pre-existing primary headache disorder (usually, however not solely migraine) have ever-increasing attacks till they reach a stage wherever they are doing not recover headache freedom in between, a pattern originally referred to as ‘transformed migraine’