Hope you don't faint when you figure out how much the Nexguard will cost you. I have one dog ( 10 pounds ) I have to use it because my wife say's the other things cause her breathing/asthma issues. It cost me 26 dollars a pill for ONE MONTH. So I hope you have lots of money to be able to treat all that you have. It does work good though will admit to that.
Think I would work on another solution but up to you.