nasal â(plural nasals). 1  An elementary sound which is uttered through the nose, or through both the nose and the mouth simultaneously, such as m and n. ( 2 medicine, archaic) A medicine that operates through the nose; an errhine.
Sinusitis vertigo and dizziness are complications of a sinus infection. Caused by bacteria, a virus, or fungus, sinusitis is inflammation of the sinuses. The sinuses are four hollow cavities in the human skull and are important parts of the immune system as they provide defense against infection. The sinuses are lined with mucous, which expels pollutants and bacteria from the body. It is common for the infection that causes colds to also affect the sinuses and can contribute to dizziness. The dizziness is a result of fluid build-up in the ears that puts pressure on the eardrum and inner ear.
Causes of Vertigo-Associated Disease. There are two categories of vertigo. Peripheral vertigo occurs as a result of a problem in the inner ear or the vestibular nerve. The vestibular nerve connects the inner ear with the brain. Central vertigo occurs when there is a problem in the brain, especially the cerebellum.