Can you have a rough guess at how much he would normally drink in those hrs?? ALSO IF HE HAS SOLIDS, MORE OF THOSE WONT HURT JUST FOR A FEW HRS TILL YOU GET BACK TO HIM..

Alcohol leaves the milk at the same rate as the blood stream... so once your right to drive, your usually right to feed, seeing as such a small amount crosses to the milk...

However much you leave, leave it in small doses.. nothing worse than someone having to chuck out a heap cause he drank 50ml out of 200ml!!!