What are these hard white pimple like bumps?

Ive already seen a dr and she just said it doesnt look like anything serious, but that was all she said. No info on what it was or could be. For 3 years ive had them. I think some go and others appear, but I have plenty at any given time. they are hard to the touch, never ooze any liquids, puss etc, are very white (doesnt show as white in photo), and are everywhere in my whole genital region but mostly the inside of my majora lips

image