So we recently found out that DD has asthma (she has recently turned 5). She has the kind induced by a cold or virus and not by exercise. I think also that cold air or changes in temperature bring on her cough too.

So she has ventolin and after a really bad few days of coughing/wheezing we put her on a preventative (Seretide) and also predmix for 3 days. That started on Sunday morning.
So its now Tuesday and the relentless coughing hasn't stopped
Ventolin stops the wheezing but its the coughing that is driving us all bananas and affecting the whole family. Poor DD coughs ALL NIGHT and has missed a week of kinder due to tiredness etc.

So just wondering if anyone else has had similar and how long it takes for the cough to go away. I was hoping the preventative and predmix would have helped by now? Should we go back to the doctor or should I give it a bit longer to work?
Any help appreciated, this cough has been going for a week non-stop and is doing our head in and we NEED SLEEP!!!