I'm a singer, I've been congested for two weeks and....?

I'm completely clueless on what's occurring! The congestion is wearing off now but my voice is still in cold mode! I've been at rest for a while now. You know, not belting out every day and drinking plenty of fluids but nothing is working. I have a lot of performances coming up. Can you give a girl a hand and give me some advice? Much appreciated! :-)