Though we now know that Audrey's rash from several weeks is shingles, I was trying to figure it out during this conversation, which happened just after a very trying dinner in which she hated the main course of a homemade soup:

Audrey, do you have any idea what your rash is from? Did you eat or touch anything that you think may have caused it?

After a moment of thought:

It was the soup. That soup from dinner tonight!