Take her to the vet. My cat was infested with fleas, my vet prescribed Revolution. The stuff works wonders!!!!! And it kills more than just fleas. He was flea free with in 24 hours!!!!
And it is safe for kittens
Please don't use any of the over the counter stuff, especially Hartz products, they are not safe to use
, especially on kittens, and definetly not a flea collar, even if it says it is safe, any vet will tell you that they can be dangerous
, and cost you more in vet bills down the road
. Good Luck!!