How to remove powder from carpet

Hey ladies,

My partners dog who usually stays with my partners parents has been at our house for a week due to the family being on holiday.

When they got back they informed us that they thought the dog had fleas and upon further inspection, he did.

This really freaked me out bc I’ve never dealt with fleas. My partner and I got flea power to sprinkle over our carpets.

We have a brown carpet and it didn’t click in my brain that the WHITE powder might be hard to get out of the carpet.

We’ve hoovered it up but there’s still some white powder that I can’t seem to hoover up.

Can anyone tell me how to help get the rest of the powder up?

Thank you!!