Many of us suffer from the occasional stuffy nose, and headache, but for more than 37 million Americans these symptoms occur for three months or longer. If you or someone you know suffers from: facial pain, pressure, congestion, or fullness; difficulty breathing through the nose; yellow or green mucus discharge from the nose; teeth pain, loss of smell or taste; headache; fatigue; or sore throat for three months or longer it is likely chronic sinusitis.