My sister had croup. I remember being woken up and bundled into the car for many middle-of-the-night trips to A&E at the Montreal Children's Hospital. This was before the invention of steriods, and the *only* treatment available was to "breathe cool air." Which for the first couple of years meant mum sitting on a folding chair in the hospital car park in the middle of the night with my sister wrapped in a blanket on her lap, and my dad & in the waiting room, waiting for my sister to start breathing normally again. Then the hospital got a special room with an air-conditioner, which was a great improvement over the car park. My sister grew out of it within a couple of years, and also grew out of the mild asthma she had as a child.

I hope the steroids get Astrid's under control quickly.