Causes of a persistent cough include asthma, postnasal drip, chronic bronchitis or gastroesophageal reflux disease, according to Mayo Clinic. Upper respiratory tract infections and angiotensin-converting enzyme inhibitor... More »

www.reference.com Health Conditions & Diseases Cold & Flu

Postnasal drip is the most common cause of chronic cough, according to WebMD. Postnasal drip occurs when the body produces more mucus than it needs and the excess mucus drains down the back of the throat. Common causes i... More »

A persistent cough is a possible sign of lung cancer, according to the American Cancer Society. Hoarseness can signal cancer of the thyroid or larynx. However, a persistent cough is not a definitive sign of cancer; the s... More »

www.reference.com Health Pain & Symptoms

Common causes of constant coughing and excess phlegm include postnasal drip, asthma and gastroesophageal reflux disease, according to Mayo Clinic. More serious causes include viral and bacterial infections, chronic bronc... More »

Some remedies for chronic bronchitis include antibiotics, cough medicine and medications, such as an inhaler for asthma or chronic obstructive pulmonary disease, as stated by Mayo Clinic. Patients with chronic bronchitis... More »

www.reference.com Health Conditions & Diseases Cold & Flu

Typical causes of a chronic cough include asthma, postnasal drip, gastroesophageal reflux disease, and infections such as pneumonia and bronchitis, notes the Mayo Clinic. Inhaling foreign objects can also cause this cond... More »

www.reference.com Health Pain & Symptoms

A chronic cough, which typically persists for eight weeks or more in adults, often has multiple causes, such as tobacco use, postnasal drip, asthma and gastroesophageal reflux disease or GERD, according to Mayo Clinic. O... More »