Hi,
We gave our cat a dose of Effipro spot-on on Friday last week and it hasn't made any difference.
We were prescribed Bravecto spot-on by the vet yesterday.
When is it safe to give her the new treatment? (I don't know how long we would need to leave it if she had a different one last week)
It's an existing flea infestation rather than a preventative if that makes a difference.