I don't know for a fact that the L-lysine only works for herpes. Based on the circumstances of my case, my dentist & I suspected a viral cause. The first time i stopped taking the lysine, my lips got worse. This time they're doing ok. I lowered the dose slowly, and I'm still taking 500mg a few times a week. Ditto for the B-vitamin supplement.
I finally got a response to my post on Netwellness, but it was somewhat disjointed and not really helpful... that was the complementary medicine doc. I think I'll get a more coherent response from the dermatology people if they ever take new questions again.
My lips are pretty much normal nw, but I'd still like to know what the hell happened.