When we lived in New Orleans in the summer the vet there said that the
fleas never die because of the heat and that Frontline would NOT work on
them. I had been using Frontline and my dogs got bitten by fleas, even
though they didn't live on the dogs they were miserable with bites. The
vet prescribed some pill they took and I used Advantage or Advanatix or
something. I may be wrong but close but I know it was an oral treatment
and a topical at the same time. I remember it was so hot and the fleas
didn't live just in grass, they lived in the cement!! Good luck.
Roz |