Different people have different cases of asthma, but if you have the type that is not too severe then most likely you probably won’t be carrying your inhaler with you at all times (I know I don’t).
In case you’re out and you get an asthma attack, the first thing you need to get is a nice steaming cup of coffee. The chemicals in coffee has a soothing effect that is similar to the ventolin pill or inhaler.
If coffee is not found in the area, then make sure you get a hot drink like cocoa or tea. Anything will do in an emergency but coffee is best.