I am a 52 yrs. old post menopausal woman. I have numerous subdermal flesh colored bumps on my face. They started appearing several years ago. I am not able to extract anything. They seem more pronounced at different times including in the evening. I have been to numerous dermatologists and estheticians. I have been told they might be milia or sebacious hyperplasia. Some dermatologists will only say they are benign but can't really identify what they are. I have had dermabrasion and CO2 lazer to no avail. What are they? How can they be treated? Can they be frozen off?