The healthy nasal mucosa secretes more than 500 ml of sticky mucus in 24 hours. This traps dust particles, is moved by the cilia, and usually swallowed unnoticed. Many of the patients who complain of ‘catarrh’ have noticed this normal process and need no treatment. For others with congestion associated with infection or hypersensitivity reactions there are now a number of effective topical applications.
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