I gave them a bath to wash off all the fleas. 2 days later, I gave them Frontline Advantage – that was 1 week ago and the fleas went away after a couple days. Then came back. I was told to give them a bath with Dawn liquid soap. That helped for 2 days… and they are back again. They are mostly indoor dogs and only go outside for the bathroom. The fleas are so bad, the dogs are chewing on themselves and biting off their fur. The Frontline Advantage is suppose to work for 30 days… Can I give it to the dogs again even though it’s only been a week and a half? Is there something out there that works better? HELP! I’ve never had this problem before.