Re: how does herpes start out? (ROP)
Herpes can start out in a lot of different ways - and can end up a lot of different ways too. You should know though, that for many people it will indeed start with some kind of bump or other skin irritation, before the blister appears. The blister is not usually the first sign of herpes - it is often preceded by a bump or, most classically, itching, tingling or burning in the area where the blister will appear.
Don't panic though - there are many explanations for genital bumps, other than herpes. Please try to resist the urge to pick at it - whatever it is, you will make it worse and it will take longer to heal, and you may well infect it if you pick at it.