Sinusitis occurs when mucus blocks the air-filled passages located in your nose, cheeks, and forehead. It may stem from various causes, including allergies, irritation, and bacterial infection.
Head and neck diseases contain tumors, infections, inflammation, and other lesions. These diseases often involve tissues in the mouth, throat, larynx, nasal cavity, paranasal sinuses, ears, and neck.
surgical-medical treatment for fistulous disease and sinuses, disease complicated by abscess, disease with a minimal inflammatory component, and disease in which an internal os cannot be visualized.