Mystery Red Spots on Penis (No itch)

I got a blowjob from a stranger 5 months ago and now I have been developing random red spots on/under the head of my penis (photos below). I have gotten tested for Gonorrhea, Chlamydia, Syphilis, HIV/AIDS, as well as a culture for Herpes and they all came out negative. If anyone can help me figure out what this is or even what it may be would be my savior,

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could be fungal related? you tried canesten?