Flea collars, such as the Seresto collar, release flea-killing ingredients over time. They work well ... creams or liquids on ...

Parasites do not have to bite your dog for the treatment to work ... as many parasites as prescription flea and tick products. Yes. Flea collars work but are generally less effective than topical ...

So during flea season, I’d do DE one week ... You can find a wide range of natural flea collars and spot-on products for dogs ...