I use Ayr's Nasal Rinse and it keeps my nose and sinuses clear. It's especially good during the Spring and Fall! I haven't had a sinus infection in the four years I've used it and no colds at all during that time. I averaged 4 or more a year all my life until then. My nose stopped up, then sore throat, then bronchitis and asthma. That and Spiriva have been miracles for me!