Chewy's annual Blue Box sale is a great time to stock up on pet necessities like flea medicine and food. Plus, there are big deals on toys and gear.

Chewy 2022 Black Friday deals include up to 50% off cat and dog food, litter, and vitamins as well as sales from Frontline, Greenies, and Kong.

Pet questions answers one about products to treat fleas and ticks on pets. Updated: 12:53 PM EDT Jun 20, 2013 Pet questions: Flea & tick products ...

You can also shop Frontline for cats for 43% off ($28.68). Frontline products are among the highest-rated flea and tick treatments on Amazon, Chewy and Walmart.

Pet owners can find plenty of cheap over the counter flea and tick products but veterinarians warn that many of the products contain toxic chemicals.