Well, I would recommend you consult a GYN Specialist.
The three physicians you have seen sounds totally CLUELESS and USELESS.
CONSULT a GYN specialist.
This is NO HERPES.
One was at Planned Parenthood, one a general practitioner & the last one at the ER I'm not sure about. I'm just so frustrated that everyone keeps prescribing me anti-virals when I tell them they don't work. It's like blisters = herpes 100% of the time & there is no other possibility.
Were any of these physician GYN Specialists?
This sounds like a nasty Cellulitis infection and if it is responding to ATB, i.e. Cephalexin, then the source is bacteria.
Geez, the hospital didn't even keep you with all the symptoms that you have listed above? That's terrible.