Redness on the head after peeing/ejaculation

Hi everyone.

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Whenever I pee the very top of my penis gets a little red, after ejaculation it becomes more intense/red. This is happening for the past 2 years, I've seen two doctors and all I got was some cream to deal with it but the issue did not resolve and I just went about my life. I do not have any burning sensation or anything while peeing but the redness probably indicates something. Did anyone have similar thing happen to them and how did they resolve it?

My first throught is a UTI. Which if it is the case is a course of antibiotics.