Cankersoreous!!!

I got a canker sore a feel days ago and this thing grew to the size of a cm (almost). I've tried many things and this thing will not go away. I've tried Oragel(MAX strength), Gly-oxide, gargling salt, cankermelts GX (god these suck), and taking more vitamins (b12, Vit C, Multi V). It has been about 5 days and it sucks!

Anyone have any remedies not mentioned?

I am reading online that lysine may work.

I hope it goes away before my Hawaii trip. Ekkk