My mom and I were told by a vet in 1993 to use 7 Dust. To sprinkle it on the animals. Also to sprinkle it around the house and vacuum it up. Didn't really think bad of it at the time, we did it several times. He's a doctor and you trust doctors, right?
Looking back I see how wrong this is. 7 dust is full of chemicals, didn't realize it at the time. But it makes me wonder if that was the reason why those two pets died of cancer. Makes me sad, just think of all the people he told this. And yes, he is still in practice.
Dr. Jesse of Wytheville, VA, avoid him at all costs.