Identify and treat the underlying cause
Use saline nasal irrigation regularly
Use prescribed nasal corticosteroid sprays
Avoid known allergens and irritants
Manage allergies with appropriate medication
Treat bacterial infections only when confirmed
Address nasal polyps if present
Correct structural problems such as a deviated septum if needed
Quit smoking and avoid secondhand smoke
Maintain good hydration
Use a humidifier if air is dry
Practice good hand hygiene to reduce infections
Seek evaluation by an ENT specialist for recurrent or chronic sinus symptoms