Why is your ferret sneezing?

Sneezing is not much to worry about they do that often

But for the throwing up, ferrets are really not supposed to throw up. She may have a hair ball which can cause alot of damage, i recommend taking her to the vet and collecting the throw up if you can, or even try giving her some LAX they sell it in any store that has ferrets. Give her some of that and see what happens in 1 day. If nothing changes take her to see your vet.