Diagnose Coughing Up Clear Liquid

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Definition

Coughing is an important way to keep your throat and airways clear. However, too much coughing may mean you have a disease or disorder.

Some coughs are dry. Others are considered productive. A productive cough is one that brings up mucus. Mucus is also called phlegm or sputum.

Coughs can be either acute or chronic:

  • Acute coughs usually begin suddenly and are often due to a cold, flu, or sinus infection. They usually go away after 3 weeks.
  • Subacute coughs last 3 to 8 weeks.
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