Sinol Headache Nasal Spray is the first FDA registered, all natural nasal spray developed for headaches. Sinol Nasal Spray contains all natural ingredients is safe and not addictive. One of these ingredients, capsaicin, is from the pepper plant. Capsaicin is a clinically proven analgesic or pain reliever. Clinical research and our vast customer base show an extremely high efficacy rate for migraine, cluster, tension and premenstrual headache sufferers. Hospitals, Universities and Clinics around the world are using capsaicin for chronic headache patients with outstanding results. Headache pain can be stifling, often incapacitating, and certainly a handicap when chronic. The most common type of headache caused when blood vessels surrounding the eyes and forehead begin to spasm, known as the class migraine attack. High blood sugar levels typically from sweets or alcohol, or high hormone levels surrounding the monthly cycle in females, along with stress hormones produced in the adrenal glands, can trigger a migraine attack. What's needed is an immediate way to relax the muscles in the lining of blood vessels and Sinol is just such a fast-acting natural remedy. Sinol's ingredients relax muscles in blood vessels and dilates helping to quickly relieve the headache without the rebound effect felt by many other pain relievers. Sinol Nasal Spray works much faster than oral medication and will often diminish your headache when they first begin. "Intranasal medications for the treatment of headaches are significantly more effective than by digestive means." Important Sinol is all natural and can be used liberally. Sinol works best when headache symptoms first occur. For powerful headaches you may have to spray 2 - 3 times in each nostril. Most headaches will subside in 3 - 20 minutes.