Chronic Cough: Causes and Treatments
A cough that lasts eight weeks or more is called a chronic cough. Even chronic coughs often have a treatable cause. They can result from conditions like postnasal drip or allergies. Only rarely are they a symptom of cancer or other potentially life-threatening lung conditions. A chronic cough can have a big impact on your life, though. It can keep you awake at night and distract you from work and your social life. That’s why you should have your doctor check out any cough that lasts for more than three weeks. Causes of chronic cough The most common causes of a chronic cough are: postnasal drip asthma , especially cough-variant asthma, which causes a cough as the main symptom acid reflux or gastroesophageal reflux disease (GERD) chronic bronchitis or other forms of chronic obstructive pulmonary disease (COPD) infections, such as pneumonia or acute bronchitis ACE inhibitors , which are medications used to treat high blood pressure smoki...

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