Rhinosinusitis is a common inflammatory condition that affects the nasal passages and sinuses. It can be caused by infections, allergies, or structural issues such as nasal polyps. Symptoms of rhinosinusitis may include nasal congestion, facial pain, postnasal drip, and decreased sense of smell. The condition can be acute or chronic, and treatment typically involves medications to reduce inflammation and manage symptoms, as well as potential surgical intervention in severe cases. Research in this area focuses on improving diagnostic methods, understanding the underlying causes of rhinosinusitis, and developing more effective treatments for patients.