I have had a red mark on my penis head near the urethra for about 4-5 weeks. I believe I received it from a brush burn from jeans or my underwear. I did have unprotected sex, but I had this mark before i had sex. I would not think it is an STD becasue no one was infected and I had this mark before. I have been putting all sorts of creams and lotions on it like moisturizing lotions and anti-bacterial creams, but it is still there. My penis keeps rubbing against my underwear, which the friction keeps irritating it when ever I move around a lot. At times it looks like its getting better then it goes back to being really red and shiny whenver I am active or take a hot shower.
What do you suggest I do?