My cat is covered in fleas!

[Underpressure96]

It's been a week since I used advantage on my cat and she still is covered in fleas!
I've been combing her with a fine tooth comb every day and am still finding live fleas.
She is acting off and randomly running around and jumping on things - very annoying as she climbs on the shelves and knocks things off!!
She is very on edge a lot of the time and itching constantly.
We've treated the house twice over the past week and gave her the spot on treatment a week tomorrow.
Is it it too soon to give her another lot of treatment? I'm covered in bites and don't know what to do!

[titchy]

Doesn't it work by making the eggs unviable, rather than killing live fleas? In which case you have another week to go before all the ones that hatched when you treated last week have died. (I think they have a two week life span...)