There are multiple causes for cough. You need to give more details on that. Like when does it be more, is it dry cough or associated with any phlegm, is it related to the food intake, does it increase in supine position, is it associated with wheezing or running nose etc...
Next Steps
Get yourself examined by a Physician
Health Tips
You could try steam Inhalation for relief if you feel there is congestion in the chest