Stars: 4.1 Yes, Amazon makes its own flea and tick treatment and yes, it actually works—at least according to the nearly 17,000 people who have given it a five-star rating. Not only is it a more ...

When should you treat your dog or cat with flea or tick products? It depends on where you live. Fleas are worst during warm-weather months, but they can be inside your home all year long.