Newt has never had fleas until this past month, shes on Heartguard for Heartworms but Im not sure what to use for fleas, I was told there is a pill now out for fleas, was just wondering if any of you use this, Im not too sure of side effects or what it really does to her insides. We had a pool put in and we are awaiting sod. I think stray cats and such are bringing the fleas to the yard another problem I have is what do I use to treat yard being Newt loves to taste everything out there?... I need some advise Thank you 