My DS who is 4 has mild asthma, but today his breathing and wheezing got a lot worst. He was still bright and playing and rushing around. I took him to the doctor who advised that we keep using the ventolin (with a new spacer thing) and continue with the moentlukast but to do a three day course of Prednisolone. Something is making me hesitate on the prednisolone - perhaps all the side effects and the fact that he is in nursery and the steroid impacts immune system (as I understand it). Does anyone have any experience / advice? Thanks