Sore muscles...exercise or not?

I did a kettlebell workout after a long break from it the day before yesterday and my leg muscles , particularly my hamstrings, are very sore. I rested yesterday but am trying to decide whether to go for a run today or not. I really should, but is it the right or wrong thing to do? Thoughts?

Actually running will help flush out the toxins in your muscles and you'll feel better afterward.

Muscle toxins? Do tell...