Since I use Revolution also, I looked up their website:
www.Revolution4dogs.com Then click on Parasites and on the corner of that page click on ticks. It does say that Revolution helps to prevent External parasites such as fleas, ticks, ear mites besides also helping to prevent heartworms. I thought I knew our vet told us this, but just wanted to be safe and check for sure.
I hope Simon doesn't get any more of those nasty ticks and his mommy doesn't have to deal with them either.
