Keep in mind that the cause of chronic cough is most commonly one of three things: post nasal drainage, asthma, and gastroesophageal reflux. However, a chronic cough may need further evaluation by your physician, especially if accompanied by other signs and symptoms such as weight loss, night sweats, bloody sputum or worsening shortness of breath. Lung infections such as tuberculosis, chronic obstructive lung disease, especially in smokers, cancer, heart failure and other serious conditions can cause a cough that doesn’t go away. If in doubt, check it out. Most of the time though, a cough is nothing to worry about. Especially at this time of year, such coughs are most commonly due to a passing flu or other viral respiratory infection. If you have a cough that doesn’t go away, this article lists some common home remedies and integrative approaches to try.