When symptoms are suggestive of sinusitis, a nasoendoscopic examination may be performed to look for evidence of polyps or thick yellowish mucus within the sinus openings. The nasoendoscope is a small tubular flexible scope that is introduced into the nose to visualise the nasal passages. Patients are usually given an anesthetic spray prior to performing the nasoendoscopy. This may cause a minor bitter taste which can last up to 1-2 hours. The procedure itself is not a painful one, but some patients may experience a little pressure or discomfort.
In cases of persistent sinusitis, a specimen of the discharge may be taken for culture to identify the bacteria and help in the selection of antibiotics.
Your doctor may also request a computed tomographic scan (CT scan) which can visualise the sinuses affected, and also identify any predisposing anatomical abnormalities.
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