Hmm, no, the doc didn't mention Herpes, although I know that's what Lysine is usually prescribed for. She recommended it to help boost her immune system. Seeing as the little minx is now putting up a bit o a fuss when I try to give her syringed "stuff" I can tell she is getting better. Now I just wish she'd chase her tail or play with something, but I guess it's going to take time for her to get back to her playful self.