Every week, I get at least one call from a reader who has had an unfortunate experience with one of the health problems we have discussed in a recent issue. Often, these readers are anguished and upset with themselves for failing to find and take a treatment path similar to the ones our article discussed because they worried that conventional care led to the demise of their dog. I can sympathize with them. My Border Collie, Rupert, is 10, and has been afflicted with a number of small but troubling ailments throughout his life. He’s always been itchy, prone to painful ear infections, and a magnet for ticks and fleas.