Vaginal lump recurrent

I've had a vaginal lump in the same place that heals and almost completely disappears and randomly recurs. I'm not sure what it is or what to do about it. When it seems to swell with fluid it becomes itchy and irritated and takes about a week to heal and then goes away. I thought it was an ingrown hair, but I've had it for a number of years and my gyno doesn't seem to be bothered by it. But I'm bothered by it b/c it's unsightly. I was told I have HPV recently, but I've had this problem for much longer than I've had HPV.
Thoughts?