In addition to carrying your regular meds I would advise taking the meds you will need in the event of a serious acute attack, because you will need them quickly. take nebulisers. you may not have the O2 or air cylinders to run them, but the ;local hospital might, but might not have the medications.speak to your doctor about taking an supply of steroids for emegency use.
As a severe asthma suffer you no doubt know how fast things can get very serious, but if you carry the right gear and use it early you can accurately replicate what we would do in the ED to treat you. if nothing else, being prepared will make you feel more relaxed, and that is a key component in avoiding an attack!! If you are caught out in the open with an attack and can do nothing you are more likely to panic, which will make it worse, if you can confidently treat yourself you will recover much quicker.
1990 Landcruiser H60. Full rebuild completed 2014
2012 Hilux, mountain top and bedrug with GG AT2s