What's a natural way to kill fleas?
I’ve heard of using dish soap and water. Here’s a tutorial for you! https://www.jcehrlich.com/fleas/top-8-flea-home-remedies/
Salt everything: the carpet, the sofa, everything, after vacuuming the carpet and under sofa cushions.
Throw away the vac bag, as the eggs will hatch in there and come out to make more babies in the house.
Repeat in one week.