How Do Flea and Tick Collars Work? How Should The Collar Be Worn By The Pet? Can A Dog Be Bathed or Swam If He is Wearing the collar? Can Other Flea And Tick Products Be Used Along With Flea and Tick Collar? Are these collars effective for breeds that have a thick coat What If the Dog Chews The Collar? Does the collar Need to be stretched before tying? When Should You Change The…