My mom had the same deal going, but breast cancer. Her chemo had the same affect on white blood cells and as a result, she was tested weekly and given a booster based on the results. The doctors couldn't have tried or cared more. She too went into remission before it spread a couple years later. She also got pneumonia several times, each serious but each time, treated with antibiotics.
Had she done nothing, she would have been dead 7 years ago instead of this year. It just happened so it's pretty fresh for me, and so I'm a little raw but... please reconsider. You can't blame the medical community for one doctor's failings.