To run or not to run?

Did a nice steady 3 miles yesterday evening.
The cut on the sole of my foot didn't give me any real grief, I knew it was there and could feel the plaster (compeed stuff) in my shoe, but no real discomfort.
Reading half tomorrow and I'm still undecided whether to run or not.
My daughters running the 2.5m fun run so I might decide when we get there (the weather might just sway it).