I am sorry that I laughed at your description, Catrin!
For your information, lips heal really quickly. One time, my younger son slipped going up the back deck stairs, and his tooth went through his lower lip. I can't remember if they stitched it, after sitting in the ER for 3 hours, but I do remember that it was back to normal really quickly, in days. So you may not look so weird at the wedding.
I recommend copious glasses of wine to cure your pain. Seriously, I might avoid it for a day or two, but I think you'd be fine to have wine at the wedding.
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