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Nasal endoscopy
Nasal endoscopy, in which the doctor looks into the nose with a special camera on the end of a rigid telescope, may be performed to help confirm the diagnosis. The doctor may look directly through the scope or may use a scope connected to a larger monitor. Before the test, you may be given a spray that contains decongestant and a medicine to numb the inside of your nose. The doctor will use the endoscope to look at your nose and the openings to your sinuses. Your doctor may also take a sample of mucus or tissue from inside your nose for further testing.
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During the test, tell your doctor if the endoscope reaches a painful spot or if you are going to sneeze.
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