I went back to the doctor yesterday to have the patch tests and tape removed from my back and the results read. The doctor found 7 things that I'm allergic to, two of which are commonly used in manufacturing shoes. Here's a snapshot of the information sheets I was given on the things I need to avoid:
It's the p-tert-Butylphenol Formaldehyde Resin and the Black Rubber Mix that are commonly used in shoes. Bacitracin, a topical antibiotic, was a surprise, and everything else can be found in my shampoo, detergent, deodorant, etc. It's going to be fun trying to find alternatives for everything (sarcasm) not to mention looking for shoe alternatives that don't use the resins and rubber that I react to, but at least now I have some answers.