### What is Sinusitis? Sinusitis is the inflammation or swelling of the tissue lining the sinuses. Healthy sinuses are filled with air, but when they become blocked and filled with fluid, germs can grow and cause an infection. ### Types of Sinusitis 1. **Acute Sinusitis**: Often caused by the common cold, it typically lasts less than 4 weeks. 2. **Subacute Sinusitis**: Lasts between 4 to 12 weeks. 3. **Chronic Sinusitis**: Symptoms last for 12 weeks or longer. 4. **Recurrent Sinusitis**: Occurs several times a year. ### Causes - **Viral Infections**: Most commonly caused by the common cold. - **Bacterial Infections**: Less common but can occur after a viral infection. - **Fungal Infections**: Rare but can occur, especially in people with weakened immune systems. - **Allergies**: Dust, pollen, and other allergens can trigger sinusitis. - **Nasal Polyps**: Growths in the nasal passage can block sinuses. - **Deviated Septum**: A crooked septum can restrict or block sinus passages. ### Symptoms - Facial pain or pressure - Nasal congestion - Runny nose - Loss of smell - Cough or congestion - Fever - Bad breath - Fatigue - Dental pain ### Treatment Options - **Medications**: Over-the-counter pain relievers, decongestants, and nasal sprays can help alleviate symptoms. Antibiotics may be prescribed for bacterial infections. - **Home Remedies**: Using a humidifier, inhaling steam, and nasal irrigation can provide relief. - **Surgery**: In severe cases, procedures like endoscopic sinus surgery or balloon sinuplasty may be necessary. ### Prevention - Avoid respiratory infections by maintaining good hygiene. - Manage allergies with appropriate medications. - Avoid smoking and exposure to pollutants. ### When to See a Doctor If symptoms persist for more than 10 days, worsen after initial improvement, or are severe, consult a healthcare provider for a proper diagnosis and treatment plan.