I am having a problem with Revolution not working. It used to be great for years and the past two treatments have been useless. I have one outdoor/indoor cat, and indoor cat and a dog (on nexgard and no flea dirt on her or her bed). I have both cats on revolution and I feel like it hasn't done anything even right after treatment. I have treated my yard, my house and have been a nut vacuuming counting down the days to use something other than Revolution. I am keeping my outdoor one in because he doesn't stay in the yard. Two vets at my practice say use Bravecto but the reviews scare me. Any suggestions what to try? Also one vet, not my usual, told me I can dose the cats 2.5 weeks after revolutiontreatment. Has anyone heard of that?