Oh no....., fleas are an absolute pest, and SO hard to get rid of......
My 4 girls had fleas in September. It is over since beginning of November......

This is what I did:
- Each cat a dose of Frontline Plus
- Wash all cat items with a desinfecting product
- Spray on all your furniture (fleas can get everywhere!) too
- Vacuum EVERY day!!
- After 2 weeks, I used "bombs"; these kill ALL living fleas in the house; not the eggs though...
- Be sure to give the cats another Frontline plus after 4 weeks.

-Once the fleas are all gone, you may switch to Frontline (not the Frontline Plus)
The reason why it takes so long is because the little eggs come out too, which means new fleas!! That is why it is important then to treat the cats with Frontline; every flea who bites the cats dies then.
It might be good to spray some items again; we did!

According to what my vet says, baths are only good if there are only a few fleas, not when the cats are infested with fleas...

I know how enervating this is, but you will need to be patient. It will get better, I promise!!

This is the thread about my own cats: http://petoftheday.com/talk/showthread.php?t=145849