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[1] [8] Chronic cough is a common symptom in several different respiratory diseases like COPD or pulmonary fibrosis [9] but in non-smokers with a normal chest x-ray chronic cough are often associated with asthma, rhinosinusitis, and gastroesophageal reflux disease or could be idiopathic.
[1] [10] The cough is sometimes referred to as a smoker's cough since it often results from smoking. When chronic bronchitis occurs together with decreased airflow it is known as chronic obstructive pulmonary disease (COPD). [27] [26] Many people with chronic bronchitis have COPD; however, most people with COPD do not also have chronic bronchitis.
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 ...
Obstructive lung disease is a category of respiratory disease characterized by airway obstruction.Many obstructive diseases of the lung result from narrowing (obstruction) of the smaller bronchi and larger bronchioles, often because of excessive contraction of the smooth muscle itself.
A habit cough is a chronic cough that has no underlying organic cause or medical diagnosis, [1] [2] and does not respond to conventional medical treatment. [3] This is sometimes called tic cough, somatic cough syndrome and previously psychogenic cough, but without clinical justification.
The cough may persist for several weeks afterward with the total duration of symptoms usually around three weeks. [2] [1] Some have symptoms for up to six weeks. [3] In more than 90% of cases, the cause is a viral infection. [1] These viruses may be spread through the air when people cough or by direct contact. [2]
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]
The cough is usually mild compared to that accompanying influenza. [4] While a cough and a fever indicate a higher likelihood of influenza in adults, a great deal of similarity exists between these two conditions. [24] A number of the viruses that cause the common cold may also result in asymptomatic infections. [25] [26]