My 5 month old kitten has been on Revolution for as long as we have had her, we gave her one dose just 10 days ago after only 3 weeks since her last dose (good for a month, supposedly). We have been finding fleas on her one at a time for a couple of days now. And her ear mites were back after the 3 weeks. No flea dust in her fur and usually on her head. She hasn't been in contact with any other animal since we adopted her. Has anyone else had this issue with "the Cadillac" of parasite medication? Revolution supposedly kills fleas in all life stages, ticks, heart/round/hook worms and ear mites. Help!