So the doctor thinks we have her asthma under control but that she also has bronchitis which is the cause of the cough (seriously its one thing after another right now!).
The advice we got was to continue with her ventolin as needed and give her preventative for 2-3 weeks and see how we go. Plus antibiotics for the infection. If she's still not well by next week they want to do an xray on her chest. So far today there has been quite a bit of improvement in her cough so I have fingers/toes crossed that we have a better night tonight.

Thanks for all your help