Sinus Plumber Migraine Headache Nasal Spray targets a variety of headaches with the pain reducing power of capsaicin, feverfew, peppermint and caffeine. This proprietary formulation provides fast headache relief by interrupting the pain receptors and nerve fibers that cause inflammation throughout the Trigeminal area. Caffeine is an important ingredient in OTC migraine medications because it increases circulation and absorption. Capsaicin, the heat component of hot peppers has been clinically proven to relieve headaches. Sinus Plumber is the first natural headache remedy to incorporate caffeine as an active ingredient in a capsaicin nasal spray. Use to relieve pain and inflammation caused by many types of headaches including tension, sinus, migraines and clusters.