Answers: I would try and avoid discussing this until you have have some dates and get to know each other. I would not bring up to date anyone who you are not serious with, palpably. Unless you plan to have sex, as you would expect you should always inform them prior to having sex. I would report them once you feel you hold gotten to know them enough that you are rightly interested in a adjectives relationship with them. Try to avoid waiting too long but not in the past you feel you know if you want to verbs the relationship, but always past any sex.
I would say after a few date when you have gotten to know respectively other, it would be less probable to frighten them if they have already gotten to know what a great personage you are. I wouldn't wait more than a month though. When only just hanging out sensibly tell him you would similar to him to know you have herpes. Don't be upset roughly it and he'll be less imagined to freak. Be prepared to answer some questions though.