Cough at some time in their lives, are people of all ages. Cough, breathing the way it should be understood due to a problem anywhere. So the disease is not a disease cough. Most cough generally indicates something is not bad, but some coughing, which have long said that the deadly disease.

When chronic or long-standing cough say
If you have a cough for more than fifteen days, then it can be considered as chronic cough or cough for a long time.

Because of a long-standing cough
Additional smoking
Some asthma patients, the symptoms may only cough. They do not want to be seen to be a good cough.
Allergic 
Sinus problems
Respiratory TB
Some cough can be caused by drugs. Some pressure may be a problem on playing a long reliever.

When coughing seriously indicates
If you have a fever with a cough for a long time and
If you can cough blood
If the cough is severe 
If chest pain with cough
When dry cough and body

Do mitigate cough
The body iS so have adequate liquid diet
Gargle with warm salt-water
Drinking ginger
Lower levels of drinking honey cough
 Group syrup cough syrup as-can-eat.