This summer I had a rash and blisters on my knee. It lasted a full two weeks, and I thought I had burned myself on the muffler of my pressure washer. I had no pain or itching, so I started to wonder if I really had been burned.
I'm not sure, but I could have come in contact with fig sap, after doing some work on a few of my trees. It might have been this reaction, I just don't know.