A dry cough produces little or no mucus or sputum
A dry, hacking cough may develop toward the end of a cold or after exposure to an irritant, such as dust or smoke.
Coughing is a sudden noisy expulsion of air from the lungs. This is body’s natural reflex to expel any foreign matter that is accumulated in the airways. Most people with a cold or flu develop a cough. It can be dry and itchy, or chesty and phlegmy.
CAUSES OF DRY COUGH
Dry cough, also known as non-productive cough may be caused due to a number of reasons, some of the common ones being-
- Viral Infection- After a common cold, a dry cough may last several weeks longer than other symptoms and often gets worse at night
- Exposure to irritants such as dust, fumes and chemicals in the work environment
- Asthma. A chronic dry cough may be a sign of mild asthma.
- Blockage of the airway by an inhaled object