
Must admit I used the Frontline spray every three months on my lot (my oldest at that time got hot spots in summer, and vet suspected reaction to fleas, even though we never found evidence of any on her) until the end of 2005.
When two of mien had a reaction and were very itchy and chewed their coats to bits, which meant they looked moth eaten and then had dark spots when the coat grew back for months.
So now I don't routinely use any flea treatments and instead bought a gallon of Vetzyme JDS insecticidal shampoo, the one with the old pyrethrum extract. My dog s get bathed for shows a couple of times a year, and none have had fleas in all that time.
I bought a can of Acclaim to treat the house as if you do get fleas that is where most of the problem will be, but have yet to use it, as have had no flea issues, in all the time I have owned the Elkhounds, and if there are fleas I am the first to be eaten alive, and had to point out to step Mum that Sheba their cat had them..