Cat and dog fleas help?

Well a cat certainly does not need to be given away because of fleas, as it is not their fault. Stop letting your cat outside. Give the fleas time to die, and if you feel like dealing with fleas some more, go ahead and let it back out. But if there's still fleas on your dog after you've treated the cat and kept it inside, then you just need to give it time, because they're all over your house and you can't get ALL of them. The fleas will eventually die off.