Ok, my friend has a huge flea problem. She came home from college to find her house has gotten infested in about a week or two. She's tried using the flea bomb stuff from Petsmart, but she's allergic to it. She's got some stuff to spray on the cats, but that's not enough. We need help! We need ways to combat the fleas on the carpet, bedding, clothing, etc. It has to be nontoxic (i know, duh right? but had to say it) and natural preferably. We're completely lost, and feeling a little out of our league. Any help will be completely and utterly a-purr-eciated!