Thank you for answering the questions. I actually had some kind of irritation on Thursday the comer of my muth was split and it looked liek I had irritaion on both sides on my mout with inflamed tiny papules. They are all gone and siince thenthe spot where the slit was is already healing. where are the inflammed papuls were they are fine now this all happened within three days start to finish. I have a very small scab on the one spot. I am guessing based on this probably not herpes especially with al the negative test I have already had.
the best thing to do is the next time when it first appears, be seen within 48 hours of the appearance for a lesion culture and typing to rule out hsv1. if the swab comes back negative, most likely cheilitis.
sometimes tartar control, whitening, "complete" formulations of toothpastes can cause these issues too. if you are using anything but plain toothpaste and mouthwash, switch to see if that helps too. same as cinnamon flavored toothpastes and chewing gums can be a culprit too.
grace