I don't really know much about asthma DG, but I think most surgeries do clinics once a week with the nurse. It might be worth him popping along to one of those. I know the NHS do take it very seriously as well. A friend of mine used to have frequent life threatening attacks and he was always proritised and treated well.
Bumper it will stop soon, I promise! You won't go bald! Don't try and hoover it up though, you'll break your hoover (I did)!
That's a really good decision TA. The last thing you want to do is spend every day at work feeling depressed because you hate your job and miss your lo. Even though it is less money surely it is worth it for your sanity.