Saturday, 13 May 2017

Cough-A respiratory disorders
A cough is a common reflex action that clears the throat of mucus or foreign irritants. Coughing to clear the throat is typically an infrequent action, although a number of conditions can cause more frequent bouts of coughing.
1.    A cough that lasts for less than three weeks is an acute cough.
2.    A cough that lasts between 3 and 8 weeks, improving by the end of that period, is a subacute cough.
3.    A persistent cough that lasts more than eight weeks is a chronic cough.

Causes of cough

A cough can be caused by several conditions, both temporary and permanent.

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