Which pill should I take to nagate the side effect of provigil(modafinil.?

Which pill should I take to nagate the side effect of provigil(modafinil.?

I took provigil 200mg every alternate days for about a week,then I stopped for three days and popped in another one in the noon. I was out all day mostly in sun, during which I was doing good.At night, I had a cup of coffee (a true blunder),since then am having hives all over my body which are very uncomfortable. Please help. Thank you