DRUG INDEX
Chronic Cough
Cough that does not resolve is a common problem. Some common causes of chronic cough include asthma , allergic rhinitis, sinus problems, and esophageal reflux of stomach contents. In rare occasions, chronic cough may be result of aspiration of foreign objects into the lungs (usually in children).
Asthma is a disease of airways, resulting in difficulty breathing or wheezing. Some asthma sufferers have chronic cough as their symptom. Asthma symptoms can be aggravated by cold air, exposure to air pollutants or pollen etc. For further reading, please read the Asthma article.
Gastroesophageal reflux refers to reflux of stomach acid and other contents into the esophagus. If acid and stomach contents is aspirated into the airways, patients can experience shortness of breath and coughing. For further reading, please read the Esophageal Reflux article.
Sinus problems and postnasal drip can also cause chronic cough. This condition can be difficult to detect. Sometimes CT scan of the sinuses are necessary for diagnosis. For further reading, please read the Sinusitis article.
Finally, infections such as bronchitis or pneumonia can cause coughing. These infections can be caused by virus, bacteria or fungus. Virus and fungus usually do not respond to antibiotics.
Certain medications, notably ace inhibitors (Vasotec, Capoten etc.) used in treating high blood pressure , can cause chronic cough.
If chronic cough persists a patient should be evaluated by his or her doctor. It is important to exclude; asthma, postnasal drip, esophageal reflux, drug side effect, or other unusual infections.
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