Coughing is the body's defense mechanism
for clearing the airways of inhaled particles or secretions.
Persistent coughing may be due to infection or inflammation
in the lungs or to the effects of irritants such as tobacco
smoke. Persistent coughing should be investigated by your
doctor.
WARNING: Coughing
Up Blood - If you cough up sputum that contains
streaks of blood on one occasion only, the most likely cause
is a small tear in the lining of the windpipe; if you are
feeling well, you need not be concerned. However, if you have
more than one such episode, there may be a more serious cause;
you should see a doctor without delay.
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