Originally Posted by helz

I'm suprised at this, I did not think that flea treatments would kill a flea inside its 'waterproof' cocoon.
As the flea is not on the cat when its in it's cocoon it falls off the cat into the carpet, it will get rid of all the fleas on the cat.
But not those in cocoons in the carpets/furniture will escape the treatment, when they emerge from their cocoons, the cycle starts all over again.