Welcome to HCM
After going through history because there is seasonal association, Bronchial asthma
is possible your treatment also suggest that possibility.
Another possibility is post viral acute bronchitis
You can get PFT pulmonary function test when you are not takig drugs and a post bronchodialator improvement can be assesed. A detail allegy work may be done including serum IGE level and allergy
testing then specific allergen can be de sensitized or avoided.
In general exposure to pollens,dust,fungus pet animal can be avoided.
Increase your immunity and lung capacity by taking yoga
and pranayam and exercises.
One can avoid sudden changes in temperatures like AC rooms and going out side.
Take your inhalers as advised by doctor and take care of your diet also if overweight
reduce it and avoid fermented foods and any specific food which increases your problem
Good luck to you.