Dear Customer (name blocked for privacy),
Sounds like that whole doctors office is one big cluster of incompetence. Go to another doctor to be retested for Herpes. You can also be checked for other STD's just for peace of mind.
The redness you described does not sound suspicious. It is not raised, open, or bumpy so it could possibly be just an irritation. Sometimes the acidity in your urine can cause some redness and irritation to the head of the penis. Certain detergents on your underwear or body soap can cause a similar reaction. Even friction from rubbing against your clothing could cause it.
I don't blame you for being freaked out after what you went through at that doctor's office. As I mentioned, it doesn't sound like anything serious, but I would get re-checked by a different doctor just for your own peace of mind.
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