Posted by Breezy

Just drink lots of citrus drinks like lemonade

That makes it burn o.o
Just keep the sore clean and it should heal within a week or two.  

I am pretty sure that you can develop a cold sore just by having a lack of Vitamin C, I usually get cold sores. That's why usually when you get a cold sore people tell you to drink orange juice to get more vitamin C into your body