Hi, I work in a cosmetic clinic and we get lots of patients enquire about various skin complaints. We get the doctor to check these prior to our patients coming in for a consultation just so we can give you a rough idea of what it is and the cost. From what I've seen before these look like sebaceous cysts. Our doctor removes them using a procedure called radiosurgery. I'm not a doctor by any means lol, but just from what I've seen before and based on the doctors advice to those patients I'm guessing this is what it is. See your GP or consult a cosmetic clinic. X