Get your hubby to take a type-specific (very important) blood test to see if he already has HSV-1 (or HSV-2). Most of the population gets HSV-1 orally in childhood so chances are he'll test positive, but knowing the facts could help the two of you figure out what kinds of precautions to take in terms of sexual contact. If he already has it, it will sometimes help prevent reinfection elsewhere on the body...even though that apparently hasn't been the case for you.
The most basic ruler of thumb to avoid passing it on is to avoid sexual contact while you're having an OB, but be aware that you can also be contagious in between OBs. If your body is throwing up frequent blisters, it would probably be a good idea for a while to assume you're contagious with or without the blister.
But every couple decides what level of risk is best for them. If he already has HSV-1 (cold sores), he's not likely to be at much further risk for giving you oral sex, for instance. For that matter, he might have it in both locations already which might be why it's spreading on you. If your OBs continue to be bad, even with the antivirals, and if he tests positive for HSV-1, you two might want to consider putting HIM on antivirals for a while to see if your system calms down a bit. I'm speculating here (and I'm not a medical professional), but it might be worth considering in an extreme case scenario if nothing else seems to work.
I know what you mean about conflicting, confusing information on the internet. Herpes.org is a good website for information that's pretty up-to-date. There are other good sites listed in this forum's "Resource Links" (in the blue bar at the top of the screen on the herpes topics page). And those books I mentioned have pretty reliable information.
But there's so much we still don't know about herpes and new ideas for treatments abound. It helps to know what's fact and what's theory, though, so you can decide what strategy is right for you.
I wonder if your immune system might be dragging a big, if you're getting so many OBs, both orally and genitally. You might want to check out some strategies to boost your immune system: megavitamins, herbal stuff like astragalus and garlic capsules, exercise, meditation and other stress reduction techniques. It might be worthwhile to consult a naturopath in your area who can guide you, since some herbal remedies can create problems if you don't know what you're doing.
Just a thought. Good luck!
TheOneInFour