I'm SO sorry to hear about your daughter's experience. I'm not a doctor, but I do have medical background, and wanted to make sure you were aware, as Stella Marie was saying, Staph aureous is on everybody's skin, it can get into any wound and cause infection. And exactly what Stella Marie said, it gets into the device, and if they don't use a WHOLE NEW set of leads, devices, etc., then the infection, really is going to come back. I know that you said they took it out and cleaned out the pocket, etc, but did they put that same device back in? I would look into that.
Also, maybe getting another opinion would be best, because if the doc is uncomfortable giving a free allergy test, which is SO easy, then you might want to see someone else, it sounds like the doc doesn't want to do anything extra to help out!!
I'm going through the trial device right now, I get it out today, so I'm not yet at that particular spot, but I hope that I was able to give some insite on the situation!! Any other questions, feel free to ask, I, or someone else I'm sure would be glad to help!! Please send your daughter my well wishes and luck!! I wish her the best and I hope that she finds her way to pain relief!!
One last thing, I also agree with PALady, about going to a teaching facility/hospital, usually they are in the big cities or so, that teach medicine to aspiring young doctors, and they sometimes have a better idea of things because they see SO much more! They are equipped well, I have worked in a teaching hospital, they really are very good!!
Good luck, I hope that helped a little!!