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

### input:
My boyfriend and I have been in a monogamous relationship for 8 months. Two weeks ago, we had sex, and he developed what looked like friction burns just below the head of his penis. We gave it four days to heal, had sex and reinjured it, as it had not completely healed. We went to a clinic, where the MD said they were friction burns, and I got tested. Supposedly, I had a bacterial infection AND a yeast infection, even though I had no symptoms. I finished my meds/cream protocol, and my boyfriend was also given a cream. We waited a full week, until we both finished our treatment, and the same thing happened IMMEDIATELY after we had sex last night. They look like tiny cuts just below the head of his penis. Is it possible that there is something inside of me that is scraping/slicing him? I ve tried exploring to see if I can feel anything, but if it is there, it s got to be at least 7-8 inches up there. We have been having pretty consistent sex for 8 months, and haven t had any problems. This has happened the past 3 times we ve had sex. All of a sudden, out of no where. He is 43, I am 27.

### output:

Hi, thank you for asking Chat Doctor. I have gone through our query and understood your concerns. Actually the friction burns are not as a result of something scraping or slicing the penis. The main cause might be inadequate vaginal secretions during sexual intercourse. I would suggest you people try vaginal lubricants and see if the result would be different. They are found in pharmacies. I hope that helps. I wish you well