Spots on penis shaft

I have spots on the shaft of my penis. I was sexually active couple months ago, these spots started 2 months after the last activity. A dermatologist checked the spots and said that "it's nothing to worry about" but I have noticed that there are more spots appearing and the "old" ones are not disappearing. My local sex clinic is currently not able to take appointments. I might order an STD test privately just in case, but I would appreciate any ideas on what this can be and how to treat it before I try to get another appointment with the dermatologist. Thank you.

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I have these too, did u shave? happened after shaving for me

I did, but my skin didn’t feel or look irritated. How long did you have them for?