You can help the situation by spreading borax or DE between your floor boards and outside on your grounds that surround your home or any areas where you see your dog favorite. Both borax and DE ( diatomaceous earth), are both natural products and kill both fleas and ticks within 48 hours. It's important to get it in all the nooks and crannies in your home because fleas lay their eggs everywhere. You can usually get borax or DE at any farm co-op type store. This is the very same product that most chicken farmers use to de-flea their chickens