Buy a flea comb you can get the plastic 2 sided type for about a dollar. Get a bowl to very soapy water. Start at the head of the animal. Do a few strokes with the comb and look at it for fleas. If you see fleas on the comb dip the comb in the soapy water the fleas will drown. Make sure to get all the fleas off the comb and into the water. Note fleas are hard to squeeze and kill you have to smash them with something solid and you’ll hear them pop. Then continue to comb the entire animal. 100 % safe and the only absolutely safe way to get fleas off . You need to vacum all your floors every few days and dump the bag or canister every time you do. For extra help get eucalyptus oil. Mix 1-2 tablespoons in hot water in a spray bottle. After you vacum spray your carpets furniture & pet beds. DO NOT USE ON ANIMALS. Fleas hate the smell of it. If you happen to have trees in your yard you won’t have fleas.
And PLEASE if you have had a problem with any flea products report it to the EPA, the company and the store that sold it to you. Also tell people , tell everyone you know, anyone you see in a store looking at flea products It appears despite over a decade of fighting to get this stuff off shelves it’s not going to happen. THe last meeting between the EPA and the companies that make these dangerous products was just like all the other actions the EPA has taken, ineffectual, to little to late and will not stop our animals from being injured and or killed by over the counter flea products. So it’s up to each and everyone of you to try to inform the public. It’s the only way to safe animals. And yes I have been fighting this battle since 2001 so I do know what I’m talking about!.