Hi Steve,
I have the dreaded herpes (which can sometimes aggravate MAV depending on how bad the OB is) and have tried using daily Valtrex in the past. It made no impact on my baseline symptoms and, in fact, made things worse. The daily Valtrex really screwed up my gut for quite some time. I do use lysine though, but even that can irritate my gut if I take more than 500 mg daily during an OB. A doctor I saw back then told me it was not worth taking a daily dose of these antivirals – that the SEs outweighed the benefits. They're good to knock out an OB at a given time but not recommended (so he said) for daily use. I find lysine is not bad and given it's just an amino acid, I'm happier using that.
Interesting that some people seem to do better with MD on the antivirals.
Thanks for the post ... Scott

edit: I saw a chrio for years for neck pain that was the product of migraine and nothing else. When I finally realised this and made the necessary dietary/lifestyle changes the neck pain basically became a non-problem despite the chiro telling me about "subluxations" etc. He gave me temporary relief with manipulation but it was certainly no cure. There's no evidence that these subluxations even exist ... frankly, I don't believe any of it.