After discussing your symptoms and medical history, Dr. Chaboki performs a physical exam of the external and internal nose, cartilage, bone, and mucous membranes. This exam involves a bright light and a nasal speculum (an instrument that gently spreads open your nostrils) and an endoscope (high resolution video camera) to inspect the inside surface of each nostril. An anesthetic nasal spray is used prior to the endoscopic exam to reduce the minimal pressure during examination. In some circumstances, additional testing, such as a CT scan, may be required. CT imaging combines special x-ray equipment with sophisticated computers to produce multiple pictures of the internal nose.