Your Itchy Dog May Need a Poop Pill

Just like their owners, cats and dogs are becoming more allergic to their environments

Credit: John McKeen/Getty Images

Belle was a wreck when Rhianna Mathias adopted the dog from a rescue organization in St. Louis a few years ago. The five-year-old pit bull had a range of health problems, with heartworms being the most serious. But allergies seemed to bring Belle the greatest…