Help please? What should I do?

[SchroSawMargeryDaw]

One of my cats wont stop sneezing and snuffling, it's been going on a fair while but I didn't think much of it.

It's pretty much constant now though. :(

What should I do? Will she need to see a vet?

Thanks.

Thanks. :)

And hopefully those days don't come for a long time, I have a tear in my eye just thinking about it!