sore penis

the past 4 weeks I have been having both oral and vaginal sex almost everyday.  the last time was in a hot tub which we somewhat forced penetration.  the following days around the rim of my penis became so sore I could not touch it like someone cut it with a razor blade.  I have not had sex with anyone but this person and not with any different partner for over 9 months.  could i have torn the skin having sex or is this more STD  and if so is the only place I could have gotten this is from this woman.  she has said nothing about STD or getting tested yet.  

[BhumikaMD]

Hi,

This could be balanitis. Balanitis is inflammation of the glans (glands) penis. When the foreskin (or prepuce) is also affected, it is termed balanoposthitis.

Inflammation has many possible causes, including irritation by environmental substances, physical trauma, and infection by a wide variety of pathogens, including bacteria, virus, or fungus—each of which require a particular treatment.

Retract the foreskin daily and soak in warm water to clean penis and foreskin. Apply bacitracin  if bacterial infection is suspected.
Apply topical clotrimazole for adult men with probable candidal balanitis.

If the symptoms persist, you would need to consult your doctor.

Let us know if you need any other information.

Regards.