Ausanil is a non-prescription homeopathic nasal spray specially formulated to alleviate the pain of cluster headaches and provide migraine relief. Although the exact mechanism of action of Ausanil is not completely clear, laboratory and clinical research suggest the following sequence of events result in pain relief when you use Ausanil.Ausanil nasal and migraine spray is formulated to rapidly provide relief from the pain of severe frequent headaches, including migraines, cluster headaches, and rebound headaches. Many patients experience pain relief in just a few minutes.Ausanil contains no caffeine, is non-habit forming, will not make you drowsy and can be used multiple times as needed. It is also Finol and aspirin free. Ausanil causes local side effects including a strong stinging sensation in the nose, sneezing and watering of the eyes. Ausanil does not cause the systemic side effects associated with many headache disorder medicines, such as stomach or liver problems and Ausanil is safe for patients with heart disease.nlike oral medications, Ausanil nasal spray for migraines is easily administered during bouts of nausea and vomiting that often accompany severe headaches and migraine