Sinusitis is an inflammation of the paranasal sinuses. Clinical diagnosis can usually be made from the patient’s history and findings on physical examination only. A persistent mucopurulent discharge with associated coughing, pharyngeal irritation or sore throat may exist in combination or individually. Nasal obstruction, hyposmia and occasionally cachosmia may occur. Sinusitis may also cause headache, facial pain, or maxillary toothache. Occasionally the patient may complain of ear blocking or nasal bleeding with generalised fever, bodyache and malaise.