Styling Cosplay Wigs Help?

[AnimeFans4Yaoi]

So I'm cosplaying Simca and Mikan this year at FanimeCON and I was wondering if anyone had any tips on the best products to use on a cosplay wig? Since Mikan's hair is kinda spiky, I wanna spike the wig but I'm not sure on the best products to use and how to wash them out after I'm done cosplaying with her, or should I at all? Any advice you can offer would be great.

Thank you so much :)