The more I read the more it does sound like PUPP is what I have. I was up at 3am last night for a few hours, the itching was so bad I couldn'tsleep and I was shaking the bed scratching like a madwoman! I had a baking soda bath which granted me some releif for a little while. I had another cool bath with oatmeal and baking soda this morning, it takes the edge off at least.
Here's a photo of what my lower calf looks like right now:
I'm going to try and find some dandilion root tea today, and hopefully I can stand it a couple days until my appointment!