Yep. It is the only thing that works for me. Sometime it even stops it if you put it on right when you get the tingling feeling. But usually, it makes atleast a small appearance before it disappears (rapidly with Zovirax).
You sound like you don't believe me Kater aid. Its a product from Austrailia. http://www.desertessence.com Click on desert essence ( the first one) and a menu will pop up.
Try a very hot iron poker, place it into a fire pit untill it becomes red hot. Place it directly on the infeckted area. Also, you could try the ol " Grey Poupon Poultis"... Let me know how you make out..