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The cough reflex occurs when stimulation of cough receptors in the respiratory tract by dust or other foreign particles produces a cough, which causes rapidly moving air which usually remove the foreign material before it reaches the lungs.
Possible causes, alone or in conjunction, that produce the chronic cough include the following. Postnasal drip, when excess mucus is produced in the sinus of the nose and drips back towards the throat, causes a cough reflex, also known as upper airway cough syndrome.
But a chronic cough is a cough that usually lasts longer than eight weeks, Dr. Banerjee says. These are some of the major causes of an acute cough, according to doctors: Allergens like pet dander ...
A cough is a sudden expulsion of air through the large breathing passages which can help clear them of fluids, irritants, foreign particles and microbes.As a protective reflex, coughing can be repetitive with the cough reflex following three phases: an inhalation, a forced exhalation against a closed glottis, and a violent release of air from the lungs following opening of the glottis, usually ...
Post-infection coughs can span months, depending on the virus strain, but seeking medical care at the eight-week mark is crucial to identify other causes. The three main chronic cough causes are ...
"After a typical respiratory viral infection, cough often resolves within 4 weeks, but can linger for up to 8 weeks," says Dr. Strachen. "The cough should gradually be improving during this time."
The most common symptom of eosinophilic bronchitis is a chronic dry cough lasting more than 6–8 weeks. [3] Eosinophilic bronchitis is also defined by the increased number of eosinophils, a type of white blood cell, in the sputum compared to that of healthy people. [2]
Other causes can include acid reflux, asthma, allergies, or other chronic medical conditions, adds Richard Watkins, M.D., an infectious disease physician and professor of medicine at the Northeast ...
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