### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
About 7 years ago after some particularly rough sex with a girl, while wearing a condom, I developed a small cluster of clear liquid filled bumps on the shaft of my penis . I did not get tested at the time because I was literally leaving the state in a couple days. I was sexually inactive for several months afterward and didn t have the issue during that time that I can remember. Since then I have had 3 different lengthy, monogamous and serious relationships where I have had unprotected sex on a regular basis, and approximately 6-8 times this symptom has recurred, always following rough sex or self pleasure at the location where the most friction occurred on the skin. I have had no complaints from any of those companions, even after I told one of them about this she was tested and the results were negative for all STD s. I had not had any recurrence of the issue since I started dating my current fiancee 2 years ago, until just a few days ago, again after some unusually rough sex. My fiancee has also been cleared for any STD s recently. Being that I am in the military I am tested for almost everything on a routine basis with the exception of Herpes or Gonorrhea . The Navy doctors that I described the symptoms to a few years ago said it sounded like ingrown hair or sensitive skin and said there was no need for a test if I did not have recurring symptoms.

### output:

HelloThanks for your query, based on the facts that you have posted it appears that you have cluster of fluid filled bumps on shaft of the penis after having rough sex with your female partner and after masturbation. This is most likely to be due to Chat Doctor. Since your screening tests done repeatedly for STD are reported to be negative you need not worry at all. You need to take broad spectrum antibiotic like Čeferin along with anti-inflammatory 