In most cases, sinusitis is caused by viral infections or allergies. These types of sinus infections tend to improve without medication after a week or so. Symptoms like headaches and congestion can typically be improved with over-the-counter (OTC) antihistamines, decongestants, nasal steroids, and pain relievers.

Occasionally, sinus infections can be caused by bacteria. Before assessing the need for antibiotics, your doctor may wait and observe whether your acute sinusitis worsens. Antibiotics may be prescribed if your symptoms are severe, progressive, or chronic.

Most cases of sinus infection can be treated with simple at-home methods. These include:

- Rinse your sinus cavities: Use a neti pot or a saline nasal spray to help flush mucus out of your sinuses.

- Inhale warm steam: Take a hot shower or drape a towel over your head and breathe in the vapor from a bowl of hot water. This helps moisturize the nose, drain mucus, and relieve the symptoms of a sinus infection.

- Use a humidifier: This will add moisture to the air in your room or home.

- Apply a warm compress: A warm compress applied to your nose and forehead may help relieve sinus pain and congestion.