A new vet that I saw today says the he thinks Frontline is really not worth using - he reckons Advocate is by far the more effective, umbrella type product to use. He suggests that because Frontline has been around for so long the fleas might have got used to the product whereas Advocate has only been around for 3 years it's a much better product and does what it says on the tin, and then some.
Any thoughts please before I do my next dose?
TIA