The cats (well, one of them definitely) have fleas. We have treated them with Frontline Combo at Vet's recommendation. We are embarking on the long, hard road of spraying the house with RIP Fleas. We are not infested as such, there are a few fleas on one cat, but we haven't found them on the other two, nor is there any sign of eggs etc on the places where they sleep.
DD is always bitten lots, whereas dh and I don't really suffer.
What we were wondering was, could we treat ourselves with frontline? It would be so much easier. We are mammals, after all.