In the mean time, keep him warm and comfy. Lots of babies who aspirate do just fine if started on antibiotics right away. We'll get him smoothed out tonight. You have to wait for people who have babies to finish feeding every few hours to get on so keep refreshing your page and don't leave.
Accidents happen. I'm sure you'll be the slowest feeder ever, if you're anything like me, after this. One nose snort of milk and I have a coronary and walk around with a baby against my ear while they squirm and complain. Then I have po'ed babies because I don't feed them "fast enough". Thankfully now, they don't mess around during feeding and I have a quad army of super suckers, instead of guppy mouthing, slobber faces.
Oh, you'll be giving probiotics two hours before OR after his cipro doses. Do you have any?