I'm losing my battle to the fleas....?

Don't wash off the flea meds. and I'm guessing the stuff that you sprayed the yard with or the carpet with isn't working. If the dog is on that much stuff to get rid of the fleas and it still gets them back then they are coming from somewhere. Can you bomb your house? Respray the yard. If you can't bomb the house, try using Borax on the carpet. You can buy it at the grocery store in the laundry area. You just sprinkle it on the carpet and leave it. It dries them out...and your skin if you stay in contact with it too much. But it works and then it can just be vacuumed out.