Question: what is the best over the counter flea treatment for dogs?
Answer: Here are the best OTC flea prevention products and treatments for dogs you can buy: Best OTC flea control product for dogs overall: Frontline Plus for Dogs. Best flea collar for dogs: Seresto Flea and Tick Collar. Best flea shampoo for dogs: TropiClean Natural Flea and Tick Dog Shampoo.