Hi D. -
One of my sons has a similar situation to yours. He was a preemie and had multiple pnuemos. Upon leaving the NICU, he was diagnosed with chronic bronchio pulmonary disease.
We kept him sheltered for the first year, then it all started in pre-school. Last winter he had bronchiolitis more times than I can count! Same symptoms, terrible wheezing and coughing.
We see Dr. Peter Schochet at Presby Plano, who treated him for asthma, even though we couldn't find the true source of the wheezing. After some tests we discovered that his airway is partially blocked by an artery to his heart (another NICU story) so he basically can't get sick. Yeah right - he's 3!
Long story short, we have Pulmicort and Xepronex on hand. When we hear the wheezing, we start breathing treatments. Sometimes we have to give him multiple if the wheezing doesn't seem to be getting better. This year we have been blessed with a much healthier child!
I was never conerned with the steriods though - and he's been getting them since birth and just 2 lbs. I'm not sure who you are going to be seeing, but I would see if he could get you in earlier? If nothing else, they have Respiratory Therapists that you can see sooner.
At least you are halfway through the winter. I hope it turns out to be nothing. It's no fun seeing your baby uncomfortable!
L.:)