Get a second opinion for sure.
I have heard of people using Lysine for cats with snot problems.
Also, running a hot shower with the bathroom door closed and you and kitty inside will give her a good steaming and maybe enable her to clear out more stuff...which would hopefully mean less around the house!
"I have six locks on my door all in a row. When I go out, I lock every other one. I figure no matter how long somebody stands there picking the locks, they are always locking three." -- Elayne Boosler