Hi all - my Nelli has fleas...she had shunt surgery about a month ago and I put frontline on her about two weeks ago which doesn't seem to have worked. I'm not sure if it has something to do with her liver or not? Anyway, I did a little searching on your forums...do you suggest I try using the "cedarcide" product? of course I am nervous about using too many chemicals on her, especially with her liver. Any info will be much appreciated...