my daughter sounds like shes creaking when she breathes a and e or not ?

[whoopsididitagain]

she has had a bit off a cough dbut doc wasnt worried now when she breathes out its really wheeze in a creaking way and when she coughs its very rattley

she is very subdued too but has no temp
she has had 5 ml of benylin dont no what else to do

God DD had this too it is bloody awful isn't it? Damn this cold, damp weather. Hope she feels much better soon x