I think I might have hit a nerve on my foot, what should I do?

Question:

I was walking in my apartment's parking lot to my car bare footed, because my shoes were in the car. I wasn't paying attention and stepped on a sharp rock. There was no torn skin, but I think I hit a nerve, because when I walk the pain goes from the arch of my foot up through my calf, almost like a nerve or hamstring was injured. Any suggestions on how to heal it?

Answers:
stay barefoot,but be careful

I think I might have hit a nerve on my foot, what should I do?

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