Ankle Injury?

I’m a dancer and during a rehearsal 4 days ago, I landed a jump, but a sharp pain went up my ankle and it buckled under me. It’s swollen, but I have iced it and wrapped it. We have a performance the first week of March, and I was wondering if you had any advice for something I could do? I’m worried because it is still too painful to walk on, and when I am sitting the pain sort of radiates on the outer part of my foot. I fractured the same ankle 3 years ago, so maybe its just ‘acting up’? Thanks