hello.....please help I have some worries my son was suffering from cough now almost two weeks doctor prescribed cortimax but still he is unable to sleep at night then she prescribed kidpred syrup and that also did not help so today I visited her again she has prescribed azithral xl and asthalin inhaler.....but I have a doubt in using the inhaler as I am worried if it will affect the childs health later on so please guide how safe and effective is the inhaler?? can I use that??