Painless red dot on penis glands

hey guys, wondering if anyone had a similar issue to me. for about a year i have had this flesh coloured dot on my penis glands. slightly raised but largely flat. at one point it would flake a small dry patch of skin but has since stopped. its completely painless and presents no itching. however, after sex and masturbation, it does become slightly inflames and redder in colour. (assuming due to friction) i have seen a few gps about it and since it is not that inflamed when i show them, they simply disregard it and say its nothing. but it cant just be nothing if it has stuck around for so long. im thinking maybe stubborn dermatitis or a small genital wart? any help would be really appreciated.

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