sinuses

Sinuses are hollow, air-filled spaces located within the bones of your face and skull, connected to your nasal passages. They help lighten the skull's weight, humidify and filter the air you breathe, and contribute to your voice's resonance. The main sinuses include the maxillary, frontal, ethmoid, and sphenoid. When these passages become inflamed or blocked, often due to infections, allergies, or irritants, it can cause sinus congestion, pain, and pressure. Proper sinus function is essential for respiratory health and vocal quality, and issues typically resolve with appropriate treatment or self-care.