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Sputum is mucus that is coughed up from the lower airways (the trachea and bronchi). In medicine, sputum samples are usually used for a naked eye examination, microbiological investigation of respiratory infections and cytological investigations of respiratory systems.
In contrast, expectorants lubricate your airway, which helps loosen up the mucus and make the secretions in your airway thinner. By loosening up the mucus, expectorants make your cough more ...
At the end of the experiment, experimenters found that there was a high correlation between phlegm and cough with smoking of 0.49 (p < 0.001.) [citation needed] Illness : During illness like the flu , cold , and pneumonia , phlegm becomes more excessive as an attempt to get rid of the bacteria or viral particles within the body.
Other symptoms include coughing up mucus, wheezing, shortness of breath, fever, and chest discomfort. [2] The infection may last from a few to ten days. [2] 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]
A cough that shows up after COVID typically goes away within four weeks, says Dr. Leykum. And it can last as long as six months after the infection, according to the American Lung Association .
Lingering coughs are often due to an unresolved infection, virus or flare-up of an underlying health condition—such as lung disease or asthma—whereas a chronic cough can be a sign of asthma ...
The infection then makes its way down to the bronchi. Symptoms include coughing up sputum, wheezing, shortness of breath, and chest pain. Bronchitis can be acute or chronic. [1] Acute bronchitis usually has a cough that lasts around three weeks, [4] and is also known as a chest cold. [5] In more than 90% of cases, the cause is a viral infection ...
Along with a runny nose and sore throat, green phlegm is another cold-like symptom of COVID-19. Interestingly, the color of the mucus is an important indicator when it comes to infection.