White dotted line on my penis and it is itching

So i have often ended up having unprotected sex with multiple partners and its been a week that i am seeing this dotted white line on my penis which is itchy at times.. I am not circumcised and I am 27 yesrs old. I am afraid that it could be herpes.. Can you please advice what it could be? And how can it be treated?

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Did you find out what i may be?