Herpes can show up as cut-type lesions. You didn't mention what type of herpes test you had done. If you haven't had a type-specific, IGg based blood test for herpes I would suggest you have one done. The only problem with these is that HSV-1 can be either oral or genital, so if it's positive for that it could just indicate oral infection. And if you haven't had cold sores/oral herpes outbreaks before, you won't know from the results whether it is oral or genital. HSV-2 is almost always genital, from what I have read.
The swab tests are supposed to be done on a fresh lesion (ie, within 48 hours of its appearance), and even then are not 100% accurate. So, if the blood test indiactes HSV-1 only and you haven't had a culture done on a fresh lesion you might want to do so the next time you get one of the cuts. Maybe do the same for the bumps too, although they don't sound particularly like herpes to me - ask your doctor what he/she thinks.
Too much info? lol Good luck, hope you are able to get to the bottom of this.
Seems your problem may be similar to mine. I have been tested twice for herpes and both time negative. My gyn assured me the tests were accurate and that any number of things can cause the sores. I have been reading a lot of info on folliculitis and that is something to consider