Can intercourse during the last day of menstruation cause red spots on the penis?

Hello doctor,

I noticed red spots on my penis head two weeks ago. I assume that it is some reaction after sex. During intercourse, my wife was at the end of her menstruation, and there was some blood left. My red spots appeared only after sex. They do not itch or have any other symptoms, but they are not subsiding even after two weeks. Previously I had a problem with a yeast infection, so I tried to treat it with Clotrimazole gel, but now, there is no change after four days of using it.

Kindly help.

Hello doctor,

Thank you for the reply.

I had never had anything like this before. So, I am concerned a little. I have attached two images. I ignored it and had intercourse several times with my wife. It seems like intercourse triggers the lesion. Since after every time there was little blood but it was not from her. When I cleaned my penis after sex, it had some irritation on the penis head. But, during sex, I did not feel anything unusual, like tingling or itching. Is there any medicine that I can take for this?

Thanks.