Migraine headache is described as a pounding headache and is usually located on one side of the head. It is often associated with nausea and light or sound sensitivity. BOTOX® has been shown to provide relief for migraine and chronic tension headache. Patients who should be considered for BOTOX® therapy include those who demonstrate lack of improvement from preventive therapy or those who could not tolerate daily medications. It is shown that BOTOX® injections may provide either complete elimination or significant relief of a headache for up to 4 to 6 months. The procedure takes about 20 minutes and includes several superficial injections targeting the “trigger points”.