Chronic Cough
Medical Author: John P. Cunha, DO
Medical Editors: George Schiffman, MD and William C. Shiel, Jr., MD, FACP, FACR
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Making Sense of OTC Cold Medications
Medical Author: Melissa Stoppler, M.D.
Medical Editor:
Barbara
K. Hecht, Ph.D.
Unsure about the hundreds of cold and
flu preparations on the drugstore
shelves? You're not alone. Deciding among the OTC (over-the-counter) remedies for cold,
flu, or allergy symptoms can be intimidating, and a basic
understanding of the types of drugs included in these medications can help you
make an informed choice.
Decongestants
Decongestants are the drugs of choice for a stuffy,
congested nose. Decongestants act by narrowing the blood vessels in the nose,
leading to decreased blood flow in the nasal tissues and reduced leakage of fluid from the
nose. Decongestants can either be taken orally or applied locally (topically) in
the form of nasal sprays or drops.
Pseudoephedrine and phenylephrine are decongestants that can be taken orally. Phenylephrine and oxymetolazone are examples of topical decongestants. While topical decongestants are effective after a few minutes, oral preparations (tablets) can take about thirty minutes to work. Decongestants
act as stimulants that can increase heart rate, raise the
blood pressure,
exacerbate palpitations, and lead to feelings of nervousness or feeling “hyper.”
Top Searched Chronic Cough Terms:
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treatment, phlegm, smokers, chest pain, pregnancy, diagnosis
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What is chronic cough?
Chronic cough is a cough that does not resolve (go away). Chronic cough is not a
disease in itself; rather it is a symptom of other disorders. It is a common
problem and the reason for many doctor visits.
What are causes of chronic cough?
Some common causes of chronic cough include
asthma,
allergic rhinitis, sinus
problems (for example sinus
infection), and esophageal reflux of stomach contents. In rare occasions, chronic
cough may be the result of aspiration of foreign objects into the lungs (usually
in children). It is very important to obtain a chest x-ray if a chronic cough is
present. The following pertains to patients who have a normal chest x-ray.
- Cigarette smoking is the most common cause of chronic cough.
- Asthma is a disease of airways, resulting in difficulty breathing or
wheezing often characterized by abnormal breathing tests. Some asthma sufferers
have chronic cough as their only symptom. They may even have normal lung
functions tests. This is often referred to as cough-variant asthma. Asthma
symptoms can be aggravated by cold air, exposure to air pollutants or pollen,
smoke, or perfumes. For further reading, please read the
Asthma article.
- Gastroesophageal reflux disease (GERD) refers to reflux, or backward flow, of stomach acid
and other contents into the esophagus. If stomach acid moves backward up the
esophagus, reflexes result in spasm of the airways that can cause shortness of
breath and coughing. In some instances, reflux can be so severe that substances
can be aspirated into the lungs and cause similar symptoms as well as damage to
lung tissue. In some individuals, no sensation of heartburn is felt and their
only symptom may be cough.
- Sinus problems and postnasal drip can also cause chronic cough. This
condition can be difficult to detect. Sometimes CT scan of the sinuses is
necessary for diagnosis. Patients often complain of a "tickle in their throat"
and frequent throat clearing. For further reading, please read the
Sinus Infection
article.
- Infections such as bronchitis or pneumonia can cause coughing. These
infections can be caused by virus, bacteria or fungus. Viral infections do not
respond to antibiotics. In patients with asthma, viral upper respiratory
infections often result in a protracted cough even after the infection has
cleared.
- Certain medications, notably ace inhibitors [enalapril (Vasotec),
captopril (Capoten) etc.] used in
treating high blood pressure, can cause chronic cough.
- Less common causes can also include tumors, sarcoidosis or other lung
disease.
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, interstitial lung disease, or other unusual infections.
Next: How is chronic cough treated? »
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From the Doctors at MedicineNet.com  |
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- Chest X-ray - A chest x-ray is a radiology test that involves exposing the chest briefly to radiation to produce an image of the chest and the internal organs of the chest. chest x-ray can be used to define abnormalities of the lungs such as excessive fluid, pneumonia, bronchitis, asthma, cysts, and cancers. Source:MedicineNet
- Esophageal pH Monitoring - Source:MedicineNet
- Gastroesophageal Reflux Disease (GERD, Heartburn) - Learn about gastroesophageal reflux disease (GERD, acid reflux, heartburn) symptoms like hearbrun, chest pain, regurgitation, and nausea. Causes, diagnosis, treatment and prevention information is also included. Source:MedicineNet
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