Fastest Way To Get RID Of A Cold Sore?!!?

I woke up with a grose cold sore on my top lip and i dont know how im going to get rid of it by tomorrow! i have a wedding tomorrow! AHH! anyone know how i can get rid of it or at least make it way les noticable? help please.

ps. i have abreva, and tons of chapstick and blistex..
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