Jim from Ilion, Ny writes
If you are walking your dog through areas that have not been treated for fleas and/or ticks, then these pests will still get on your pet and bite. When bitten, the Seresto Dog Flea and Tick Collar will kill fleas and ticks. For additional questions on the collar you can contact the manufacturer directly: 1-800-255-6826
Answer last updated on: 06/03/2021