Hello, I'm so sorry that you are going through this with your DD. My DS went through many respiratory problems in his first year of life, basically spent the entire winter sick and wheezing. He was hospitalized with bronchiolitis as well as steroid medication (oral) a few times for wheezing that would not go away after colds. He was on a nebulizer with inhaled steroids daily for a few months.
In my DS's case, I took him to a naturopath and he had many food allergies/intolerances (he was even reacting to foods I ate through breastmilk before I stopped, then to the formulas). I also took him to cranial sacral therapy. All of these things took a while, but it gradually helped and he is no longer wheezing and has been off his nebulizer since start of summer. The naturopath helped with homeopathic remedies and natural supplements to boost the immune system (also antiviral stuff) and the cranial sacral therapy helped with general structural and drainage issues (he was going for other issues as well). I'm not saying this is the answer for you, but just wanted to share my story. It is scary to see a little one wheezing (though DS often acted fine except for his breathing) and I was also very hesitant to do the daily nebulizer. But I did use it for a while I worked with the naturopath and the cranio sacral therapist because I didn't want him to end up in the hospital again. I'm hoping that the wheezing will not come back this winter (he has been sick in the summer but no wheezing).
Mom to DS born 6/09 and DS2 born 6/12