I got Patches to the vet and back. Vet says he has fleas, gave me some expensive medicine

[marybourg]

3. I didn't know my cat had fleas until

the cat moved out with a family member. The fleas then attacked the remaining human family, and we were covered in itchy bites. Called the exterminator and boom! the fleas were gone! How that works when the cat (and any remaining members of his entourage) are still around, I don’t know, but I would follow the vet’s instructions.

Edited after reading the previous post: the exterminator didn’t spray anything, he applied powder to the carpeting. Maybe it was even diatomaceous earth, who knows? But the fleas were gone immediately.