Bronchitis

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Signs and Symptoms

The first sign of bronchitis is usually a persistent dry cough (associated with an upper respiratory infection). Eventually, coughing brings up sputum from the lungs that may be thin, clear, and white. As infection progresses, the sputum becomes thick and yellow, green, or brown. A thick, pus-filled discharge suggests a bacterial infection.


Other symptoms include the following:

Burning pain, wheezing, and crackling in the chest
Painful and difficult breathing
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