I need my voice for a concert!!

I just started to lose my voice and I have a vocal concert in two days. I'm not sure if it will be back by then. It sounds really weird and I can hardly sing. I don't have any solos or anything, but I help keep the altos on pitch. Are there any quick solutions to get my voice back for this big concert?? Thanks **xoxo**

Oh yeah... we were also told we need 'big hair'. Any ideas on how I can make that work??

The only thing you can do is go easy on your vocal cords and not talk a lot, I really hope you get your voice back in time, but there's not much you can do.......

well on the big hair part, flip your hair back and forth 3 times, then you can also use a hair dryer and hairspray, and also use a rolly brush and just play with it until it gets big.

Well, see your doctor for medicines. That's all really I can help with.