Nitschke and Banks were on shots.... never was it said that there would be issues with there liver? Now, since we switched to raw, we were able to stop the shots and when we did the stem cell therapy for Nitschke his allergies seemed to have really diminished during those 7 months. Stop the allergy meds and just give him the benedryl till you can get in with the new vet. Any chance they can get in you in sooner? Call explain your concerns and maybe they can fit you in.
Hang in there.... it will work out.