Brief Answer:
many possible causes

Detailed Answer:
Hello,
It is not possible to tell you exactly what this is just by looking at the photo. It could be something simple and not serious like folliculitis, an inflammation of the skin follicles. It could also be something more serious like herpes. You need to see a doctor and have an exam and testing done to determine the cause and get proper treatment. If you have had unprotected sex you will need complete testing for all sexually transmitted infections. Please be seen by a doctor as soon as possible to protect your health.
Regards,
Dr. Robinson

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Brief Answer:
yes

Detailed Answer:
Hello and thanks for the follow up. If there is no pain then it is not likely herpes, which is a good thing. If it is just folliculitis then it should clear up on its own. It could still be some sort of wart or other infection that needs treatment so it is best to see a doctor that can perform testing on the area to make sure it is nothing that needs treatment to get it to clear up.
Regards,
Dr. Robinson

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Brief Answer:
few months

Detailed Answer:
Folliculitis can clear up after a few weeks to months. If it is persistent then sometimes warm compresses help or sometimes you need some oral antibiotics to knock it out.
Best wishes,
Dr. Robinson

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