Help blisters!? stings and burns? what should i do! have a performance in an hour!!!?

Okay so I have a performance in like an hour And I have two blisters on my heels from my pointe shoes. I bought new shoes and they don't aggravate the blisters but when I dance the blisters sting and I have a hard dance and a solo where I kick my leg up high and hit the tambourine. We r performing in the studio so I can't make faces if my feet hurt cuz the people will see it. Most of the people coming are people who donate to the school and people who used to dance. Because of my blisters I feel so nervous like I'm going to throw up. Help me! I took a painkiller, put BFI powder on, AND I put antibacterial bandaids on. What else can I do? Should I put heel pads on? Or what? I'm afraid the heel pads will put too much pressure And aggravate the blisters even more cuz that's what happened with my old shoes. Please help me. Should I ask any dancers for medication or my director????? I'm dying here!!!