Coughing is a reflex that keeps your throat and airways clear. Although it can be annoying, coughing helps your body heals or protects itself.
Coughs can be either acute or chronic. Acute coughs begin unexpectedly and usually last no more than 2 to 3 weeks.
Acute coughs are the kind you nearly everyone often get with a cold or flu. Chronic coughs last longer than 2 to 3 weeks.
Coughing is an important way to keep your throat and airways clear. However, excessive coughing may mean you have an causal disease or disorder.
Some coughs are dry, while others are considered productive. A productive cough is one that brings up mucus. Mucus is also called phlegm or sputum.


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