Would I go to a urologist,a dermatologist or a GP if I need to?
You may have herpes, but that doesn't mean that every rash you get down below is related to it. The rash you describe sounds like chafing of some sort, not herpes. I advise you to leave these lines alone for couple of weeks and not do anything about them. If they're still there then, show them to a doctor for definitive evaluation. If they've gone, forget about them.
Best.
Dr. Rockoff