M.M.
Has she called his ped.already?
One of the things really helped my baby was to elevate his bed by putting a pillow or some stuffs under his matress. This REALLY helped him breathe better.
Another things that his doc told us to do, was to use Ocean's nasal saline and a bulb syringe. BUT she should consult a doctor first to ok it and show her how to do it, because if you do it the wrong way, it can make his nose bleed a little.
Good Luck