Lazy Day Dogs

My little chis are lazying around this morning...as if they didn't have a care in the world. I am still using that cedarcide application. Yes, there are still fleas but not as many now. I am still on the search of something better. I have heard alot of talk about using food grade Diamitous Earth but also hear that you can not breathe it in. Anybody have any good remedies for fleas?