Hello, for the last two years, I have been getting little bumps under the skin all across my face. I have keratosis pilaris on other parts of my body, my whole life, but never on my face. I've always great facial skin, with maybe a break out every so often. My face is now freaking out. I've tried lactic acid, glycolic acid, sulfur, salycic acid, coconut oil, apple cider vinegar, jojoba oil, tea tree oil, grape seed oil, honey, microdermabrasion almost everything including retin a. Now also, as soon as these bumps come, they leave a dark spot/scar immediately on my face. I have had no luck with anything. They do not itch either. I'm wondering what the case may be?