The Nose
 Know your nose
 Functions of the nose
 Nasal Dysfunctions
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Nasal Dysfunctions

Nasal congestion refers to the blockage of the nasal passages. In response to various threats the internal nasal tissues swell due to dilated blood vessels, the mucous thickens and the ciliary movement on the mucous membrane decreases lowering in turn the efficiency of cleaning mechanism of the nasal mucosa. As a result, respiration through the nose is obstructed and may eventually lead to attenuation of its protective function and the appearance of infection...

Common Cold Rhinitis Sinusitis

Common Cold

A common cold is a contagious illness caused by viral infection of the upper respiratory system. It is caused primarily by rhinoviruses and coronaviruses. Colds may also involve the sinuses, ears, throat and lungs. The symptoms of a common cold include runny nose, sneezing, nasal obstruction, sore or scratchy throat, cough, hoarseness, and mild general symptoms like headache, feverishness, chilliness, and not feeling well in general. There is currently no known cure for the common cold; however, mild colds may last only 2 or 3 days while severe colds may last for up to 2 weeks. A cold is a milder illness than influenza. Influenza typically causes fever, muscle aches, and a more severe cough. However, mild cases of influenza are similar to colds. There are over 100 different cold viruses. Rhinoviruses are the most important and cause at least half of colds.