Hello and sorry for the delay. I'm Dr Chip
This is nothing serious. It's a Fordyce spot--a small benign cyst
Usually these go away on their own but they can be treated with topical tretinoin cream or with a cold C02 laser by a dermatologist.
Please let me know if you need any more information John
No they aren't always raised.
And they can disappear quickly
It's definitely nothing to worry about.
Please remember to rate my service to you John