What are the main signs and symptoms of sinusitis?

Common symptoms of sinusitis include nasal blockage, congestion, discolored nasal discharge, facial tenderness/pain, reduced sense of smell, cough, fever, toothache, and bad breath. Viral sinusitis from the common cold typically resolves in 7-10 days. Bacterial sinusitis may be suspected when symptoms are severe, last more than 10 days without improvement, or worsen after starting to improve initially.^[1][2]