what is the best and fastest way to heal a cold sore/fever blister?

It seems like everytime i get excited to go on a trip or meet some one important I end up getting a cold sorr and its not just one no i get it all over my lips. they are painful and nonattractivoe. please i need some ones help.

Activir is expensive and at times that tube will be finished before its gone, now Vanilla Essence, you know the baking stuff, put it on as it starts itching, repeat dat a couple of time, you’ll be amazed.