Hi Dr. Kara,
Many thanks for your information, we have sprayed the house with Johnsons 4fleas with insect growth regulator, says it protects for up to six months. Have also vacuumed thoroughly & washed all removable fabrics at 60 degrees. I do not seem to have a problem but my partner seems to still be getting fresh bites around her ankles.
We will try Advantage but the problem is that the cat is black making it almost impossible to see fleas or flea dirts on her.
If you think the Johnsons spray is not too good we will give the Siphotrol a try
Many thanks for your help ... Let battle commence!