Cough reflex is an important protective mechanism. In chronic bronchitis or bronchiectasis, people are often forced to cough. This is because lung lashes no longer clean these lungs.
Cough is considered chronic if it lasts more than eight weeks in adults and lasts more than four weeks in children. The three common cause of such a cough are postnasal syndrome, asthma, acidic reflux. They usually go together.
Chronic cough is the main symptom of other two conditions. This is a cough version of asthma and eosinophilic bronchitis. Both diseases cause inflammation of the respiratory tract.
Cough may remain for a long time after a viral or bacterial infection. According to a systematic examination, it lasted 25 days, so that 90% of children with colds are coughing.
Sometimes a cough that does not pass can show serious disease, including lung cancer and unusual infections. It is recommended that you get medical aid immediately, if you cough with blood, you have too much sputum, especially in rest or night, there are difficulties in swallowing, you have lost weight or you have a fire, you have a recurrent pneumonia, you have a cigarette older than 45 years of age, cough or modified.
Very rarely, despite a comprehensive examination and treatment, cough is maintained. Then refractory is called chronic. It is also known as an unexplained chronic cough.
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Source: Ferra
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