Hello.
Welcome to HCM.
I went through your details.
It is indeed very difficult to predict whether Bangalore will be good or bad for you as
asthma depends on so many factors. And most important thing what are the allergens you are allergic to. Only thing I can say that it will change!!
When you move to Bangalore, the flora is completely different from that in North India, so pollens change. (Specially because you have seasonal asthma, I would suspect pollens as important allergens for you). Also, humidity may be more increasing house dust mite & mold exposure. Also, pollution will depend on area where you would live.
So there are many factors that will affect asthma.
Personally I would suggest you not to worry and stay positive. I would also suggest you to practice regular breathing exercises,
Yoga & Pranayama. Please avoid dust, air pollutants & smoke as much as possible. Have a healthy nutritious diet. This will help you a lot.
Regarding medications, as you are having seasonal asthma, I would suggest you to start
montelukast 2 weeks before expected season and continue regularly during the season.
If this does not control, I would suggest you to consult an Allergist who will suggest you
allergy testing and may suggest inhaler medications &
immunotherapy.
Hope this will be helpful to you.
Wish you best of the health.
Regards.