What is the function of smoker's cough?
Your friend has answered correctly, I would like to add more points
A smoker's cough is the persistent cough that develops in smokers who have been smoking for long time.
Causes: It is caused due to smoking which damages the tiny hair like cells called cilia, lining the respiratory tract. These hair like cells catch toxins and dust and moves them back towards mouth. But due to smoking cilia does not function properly and toxins enter inside the lungs. This leads to persistent coughing as the body tries to remove these toxic substances from lungs.
Treatment: The best treatment is to quit smoking.
@Rushali...Good work...Keep posting!