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no pic on this post. Short answer - NEVER pop anything on your sex organs, nor on your anus. Popping it can seriously make it worse.
Posting a picture is the best for others to check what you have …
With anything like this on the genitals it is best to get yourself some liquid (not cream or ointment versions) antiseptic and dab a little undiluted on the pimple / spot / bump or whatever can potentially develop 2 or 3 times a day. You may need to do this for 3 or 4 days, once it reduces in size dab it at least once a day until it is completely healed.
The other issue is, what has caused this? You need to be concerned if you recently had unprotected sex, either penetrative or oral …