There is an autoimmune disorder called Behcet's Syndrome's. It's initial symptoms closely resemble the herpes virus, causing inflammation, vaginal sores, cuts, boils, fissures, or folliculitis. Other symptoms develop years later, so it is very important that you find out just what it is that is causing your symptoms. Don't be too quick to brush it off as nothing, Behcet's disease affects people of every age and every race. It is important you see a doctor who know's enough to help you. Ask them about Behcet's Syndrome, if they don't know enough to tell you, they won't be able to tell you if you have it or not. You can also visit the American Behcet's Disease Association's website message board for further information.
If your dad is a doctor, then he should understand that women sometimes get vaginal irritations and infections and must be seen by a doctor. Women have to go to the doctor for their yearly exams, too.
So I don't see what the problem is. If you have a vaginal irritation or infection, it needs to be treated appropriately. Unfortunately, no one here can tell you whats wrong. You need to go to the doctor.