Lion Fish sting!

[cal_in_calgary]

a friend of mine has alion fish in his tank.
i had been trying to feed it by hand, and it snapped at the little gold fish, and i got stuck by a fin. my friend said it wouldnt be bad, it hurts like hell, that was yesterday, my arm is turning a darkish color, he says it'll go away in a day or 2, should i be worried a little more, it does hurt like hell. my arm is swelled up and i cant move my fingers that much.
I told him i have to see a doctor, and he says just wait it out....