So just a heads up: please believe the cautionary tales advising that if you give a child Tamiflu on an empty stomach (say, perhaps, because the child has been refusing to eat pretty much all week and its ten pm and you can't wait any longer to give them their meds,) they will probably barf it up. All over you, would be my guess, and your sweater and your carpet and your off white couch, probably without any warning when you're half asleep, so that you jerk awake to the warm, sickening feeling of puke soaking through your sleeve. This is just conjecture of course.
But the good news is that if you strip off your cushion covers (against the advise of the manufacturer's label) and soak them in a lot of baking soda and vinegar, then wash them with baby shampoo, then rinse them in your bathtub, they should be good as new! Maybe even better, given your runny nosed kid(s) have probably been wiping their grubby faces all over the couch all winter long, amiright?
Your carpet might still smell a little funky though. Maybe go buy some more baking soda.