Thanks for your question on Healthcare Magic.
I can understand your concern.
I don't think you are having
cough variant asthma.
Your chronic coughing is mostly due to poor treatment of chronic
bronchitis.
You are not taking appropriate treatment for bronchitis.
In my opinion, you should first
consult pulmonologist and get done
1. Clinical examination of respiratory system
2. PFT (pulmonary function test).
PFT will tell you about severity of the disease and treatment is based on severity only.
You will mostly improve with long acting inhaled
bronchodilator and inhaled
corticosteroids.
Oral anti oxidants, mucolytics, expectorants are also useful in your case.
So no need to worry for asthma or other lung diseases. Consult pulmonologist and discuss all these.
Don't worry, you will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.