I have heard of success with Zinc and although I have never tried it for herpes, if the same premise applies regarding its success against colds and flus, it seems to make sense.
When you take zinc losenges when in the midst of people who have a cold, so long as the whole of your mucus membrane is saturated with it, it is essentially impossible for the cold/flu virus to latch on and penetrate. It creates a barrier of protection.
This would seem to make sense regarding H as well although the penetration is coming from a different direction, from inside the body..
Anyway, it seems that the zinc-h success stories mostly deal with TOPICAL application and not swallowing supplements.
If there are any zinc experts who can confirm or deny this information, please respond.