(Concern) Can pimples appear near the anus..?

While showering and washing, I felt a rice grain-like lump inside.

If you stay still, it doesn't hurt, and pressing firmly only causes slight pain.

Can pimples or similar bumps form on the vulva?

I usually have a lot of cold symptoms, and I often get small bumps around my anus and vulva when I am stressed or before and after my period.

I didn't visit the obstetrics and gynecology clinic because I wasn't feeling particularly sick and there were no other issues.

Should I go to the obstetrics and gynecology department? Usually, how long does a vaginal pimple last?

If I get a prescription at the pharmacy and apply ointment, will it go away?

There were no particular issues found in prenatal tests, postpartum tests, or national health screenings.

I'm worried because I feel it unnecessarily.ㅠㅠ..