A cough that lingers for weeks, but seems to come and go, can be confusing and disruptive. One day, your throat feels clear and your breathing is normal. Next, you’re stuck in a cycle of dry coughing or throat clearing with no obvious reason. So, what causes a cough that comes and goes, and when should you be concerned? Coughing is your body’s natural reflex to clear the airways of irritants, mucus, or ...