A. Sinusitis is the inflammation of the nasal sinuses due to viral, bacterial and/or fungal invasion or allergic reactions. Sinusitis starts as an acute infection, and if not treated, it becomes chronic. The symptoms of acute sinusitis are:

• Bad Breath
• Dental pain
• A cough
• Facial pain or pressure
• Fever
• Fatigue
• Nasal discharge
• Lack of smell

Chronic sinusitis is characterized by four or more recurrent episodes of acute sinusitis.