Thanks for your question on Healthcare Magic. 
I can understand your concern. 
You are having chronic cough (cough for more than 2 weeks). 
Common causes for chronic cough are 
lung infection (tuberculosis) and 
cough variant asthma. 
So better to 
consult pulmonologist and get done 
1. Clinical examination of respiratory system 
2. Chest x ray 
3. PFT (pulmonary function test). 
Chest x ray is needed to rule out lung infection. 
PFT is must for the diagnosis of asthma. It will also tell you about severity of the disease and treatment is based on severity only. 
You may need anti tubercular drugs, inhaled 
bronchodilator and inhaled 
corticosteroids (ICS) on the basis of these reports. 
Don't worry, you will be alright. 
First diagnose yourself and then start appropriate treatment. 
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.