Thanks for writing your query.
Afterreadingyour post, it seems that the pain you are experiencing can be due to muscular in origin due to excessive coughing.
The inhalers you have mentioned will help in bronchodilatation and help you in asthma
For dry cough
you should take antihistaminic like cetrizine
10 mg once a day, preferrably at night.
I would suggest that you should have following investiagtions done :-
1. Complete Blood Count(CBC).
2. Absolute Eosinophil Count
3. Chest X-Ray (PA view).
Steam inhalation can also help in relieving your symptoms.
You should eat fresh fruits and vegetables for increasing the immunity and regaining health.
If the problem persists, get yourself examined clinically.
I hope this is helpful to you.