totally not true. Boric acid is extremely toxic, which is why there is a
skull and cross bone on the container!!! if you put it on your carpet,
regardless if you rub it in or not, its going to get on your cat and your
cat will ingest it!!!

Over the counter drops have a very high rate of cats having reactions, and I
wouldn't recommend it on even a bad day, but I would over what you are
suggesting. Anything gotten from a vet though is VERY safe. Frontline and
advantage get into the oil glands and is redistributed that way (it does not
get into the blood)

"Smitty" wrote in message
...
That is why you must rub it in. It less toxic than flea drops when it is
rubbed into the carpet and sits at the base of the pile where the fleas
are!