Nasal Saline Drops/Spray..

Ni
So I recently gave a call to my daughter's pediatrician because she keeps on like gasping for air, especially when she's sleeping and it has been scaring me and all she said is she might have acid reflux and to use these nasal saline drops/spray on her and I have been and I have been propping her up when it's feeding time and letting her sit up for 30 mins or less after every feeding and she's still doing the gasp for air thing. Any other momma's that have LO's with acid reflux and have used the nasal saline drops/spray? Does it work? Does this acid reflux issue go away, what can I do to help my LO with it? (FTM)