diatomaceous earth not working

i bought this stuff yesturday from a feed store heard about it online i have a major flea infestation and it seems as though it has gotten worse it said it cuts their exoskeloton when crawling through it but fleas jump they dont crawl until they land on you or your pet so i see it as false advertiseing.... any suggestions i cant afford alot of bullshit sprays and bombs been there done that nothing kills the louisiana bugs
help///

Iva - Welcome to Permies...

Like Paul has said, "have you read his 'Flea control article'?"

Using DE will work for you, but it's not 'instantaneous' like you may have been used to in a chemical spray; the DE does cut the exoskeleton, but the body still needs to dehydrate, give it some time. Did you lightly dust your cat(s)/dog(s) and your floors, upholstery? Be sure to protect yourself from the dust of the DE when you use it, as it can bother you, too.

Search here on Permies for 'Diatomaceous Earth' and also there are vast amounts of 'how-to-use' on Google