I've been dating the same guy for almost 6 months and this first happened about a month ago. They are very tiny with no bump underneath on my upper lip, they occur right on the edge of my inner and outer lip in the right corner of my mouth. sometimes they are in three's, sometimes it's just one. the reason i know they are there is because my mouth gets an unpleasant tingling sensation in the corner of my mouth. the first time i had it was a couple weeks ago and there was no pain just tingling, this time i bumped it with a cup or something and it was a quick really sharp pain but when i touched it directly it didn't really hurt.i've been blood tested for every std including herpes and i've come out clean. my doctor told me if it was herpes i would definitely know and she doesn't think i have it. I've heard of fordyce but i don't think that's it because of the tingling.