A cough is a natural or spontaneous reflex to clear the airways of mucus and irritants like dust or smoke. Most coughs will subside within 3 weeks. The most common cause of a cough is a respiratory tract infection, such as a cold or ...
A dry cough can hang around for a long time, sometimes months. They are often temporary and does not produce phlegm or mucus. A tickling sensation in the throat can make a dry cough. It is a nonproductive cough that ...