reddish glans looks unhealthy

What it could be immediately after oral sex with csw which last one min and protected sex when I finished I ran to wash my penis but i have spotted some changes right after that I read online it could be herpes but without blisters etc . this drive me crazy I’m experience small burning itching no urinary problems no discharge but looks very strange unhealthy, after shower I can feel a bit burn sensation, did someone had it before? I got this since 1 October until now

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