Hi,
I have just read your query, having unprotected sex and pimple type lesion may increase
anxiety. Don't worry many a times this could be very benign or treatable. Does the lesion developed over night? or this is the first time you are noticing them? How exactly they look like is it exactly appearing like a ring in the base of your glans?
Let's see what are the possibilities:
1) Hirsuties Coronae Glandis/Pearly penile papule. This is very benign, it commonly occurs as a rim of elevated papule around the rim of your glans. This doesn't need any treatment and it will go on its own if it disturbs we can remove it with
Laser.
2)
Candidiasis. Can cause pimple type lesion can be very well treated with oral antifungals and topical antifungals as well.
3)
Balanitis. Sometimes cause a similar lesion.
4) STD's. in your case, I will consider STD as the last option but can be concluded only after seeing a picture of the lesion.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Moses John Wesley,
General & Family Physician