**
1. since there is no history of intercourse/sexual contact, likelihood of STD's [sexually transmitted disease] is/are ruled out, thus likely possibilities in your case could be
. normal skin formation caused by the excessive oil gland production of sebum
. Candidal
Balanoposthitis (CBP) and Nodular
Scabies.
2. If you are uncertain, you better see a doctor to have this figured out and start with prescription drugs.
PS. It is always wise to get confirmed by a professional
3. It is necessary to practice general hygiene measures also:
. proper hygiene of genitals
. change of underwear, twice a day [prefer cotton undergarments]
. keep the area clean and dry [as far as possible]
4. you may ask for prescription medicines like: gandhak malham, ointment Trichoderm and Six-C ointment for external treamtment, to be applied twice daily.