What is the best flea and tick medication and is it waterproof?
There is no single best flea & tick medication—there is the right medication for your pet. Frontline Plus is excellent, but for those pets whose skin is highly sensitive, Advantage or K9 Advantix may be better. Frontline, Frontline Plus, Advantage and K9 Advantix are all waterproof, and K9 Advantix is only for dogs.. According to the package insert, Advantage can be applied as often as every week, but Frontline cannot be applied more than once a month.
