Coughing is a common symptom of many different illnesses. A cough lasting two weeks can be concerning, but it is not always a sign of a serious condition. A persistent cough often results from a lingering respiratory infection, allergies, or irritants like smoke and pollution. However, if the cough is accompanied by symptoms such as shortness of breath or worsening severity, it may indicate an underlying issue that requires medical attention. Understanding the common causes ...