Medically reviewed by Jonathan B. Jassey, DO A chronic cough may be caused by environmental triggers like air pollution or ...

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(Health.com)-- You've been coughing for weeks. How do you know if it's just a hard-to-shake cold or something more serious? A chronic cough, defined as lasting more than eight weeks, is not uncommon.

This kind of cough can often get worse at night or when lying down. That’s because gravity helps pull fluid down when you’re ...