I'm a brittle asthmatic and I also have bronchiectasis. I've got home nebs and am steroid-dependent. I'm still managing to work part-time but I have to travel a lot. My asthma has been getting a lot worse and it tends to go off incredibly fast e.g. I can go from feeling fine to sats in the 80s in minutes. I'm lucky enough to live in an area where a hospital is never more than 10 minutes away and ambulances come within minutes, although even then I'm often not very with it by the time they arrive and I always end up in ITU or HDU, even when I'm on 50mg of pred and antibs. However, I'm worried about what could happen if I get caught on a train or between cities. Does anybody have any ideas of medical stuff I could do while waiting for an ambulance? Does anybody have portable O2 for this sort of situation? I already have a portable nebuliser which I use until the paramedics arrive.