Black nail polish turns hands blue?

Is it possible that black nail polish can make your hands turn blue.





My girlfriend recently got her nails painted black from this salon. Then lately her hands been turning blue like some type of blue sweat or whatever you may call it comes from the pours of her hands. She would wash her hands with either warm or cold water and the blue would wash off but then come back like 10 mins. later.





She washed the black nail polish off today and as of now the blue stuff hasn't came out yet, is it heard of that nail polish cause such a thing or is it a coincidenceBlack nail polish turns hands blue?
Wow that is majorly odd. I would go to the Dr.