Did you consider that she might be one of the roughly 25% that already has genital herpes? I would never let having herpes myself stop me from dating, oh, that's right, I didn't and it worked out just fine.. LOL Back when I was dating, none
To get right to the DMSO question. I wouldn't touch that industrial solvent with a 10 foot pole. There are a lot of ways to treat the symptoms of herpes that are a lot less dangerous. Here are some links relating to DMSO: