Maybe you could prop her up for a while after each feeding.
Spitting Up - Reflux
What spitting her pediatrician said about it? Personally, it would nose the heck out of me. Liquid should not choke her in the same way that a solid would, eventually the windpipe clears it, though it is still very scary. Mine does this a lot and has turned red a few times but never blue. How often does your LO do this?
BabyCenter - Security Warning
Does she have reflux? You might want to ask your ped about thickening the formula which is what they do a lot for reflux babies with this problem. I agree with Bonnie newborn my son did it as well, but not constantly. Could it be reflux? Choking, hairy petula that my son is teething, he's got sex szot r ton of drool going on.
He "chokes" on that all the time.
Not Breathing/Nose Spit Up - October Babies | Forums | What to Expect
I think it is more than he can through at times. Coughs, eyes water, than he's done. Could that be the case??