Share 'Natural remedies for cold sores'

I've always had some kind of issue going on with my skin, starting with eczema at 2 months old. It's always very fun, and by fun, I don't exactly mean fun, when I discover a new weird thing going on with my skin. Yesterday, it was a cold sore! I've never had one before, so I don't know how to take care of this, or how to laugh about it and not take it too seriously. Right now, it's a semi-pain...