I am surprised at the extent of Asthmatic reasons.
How much can you avoid in the real world?
Are we loosing our immunity?
Every other small irrirtant is becoming a disease...
Come on we can do better than than.
We were made to live in the Real World full of everything which it produces...It protects itself by coming in contact by what it produces..
The suddenness of a secluded disease can take its toll beyond the imagination of ManKind.
Get the exposure or restore your own strength..
Visit the Doctor of every type(Allopathic,Homeo,Ayurvedic etc)and they will tell what to do ...
Wish you a healthy life.