std help please

Hi, i had sex with a girl and it was protected but she gave me oral without protection. she didn't have anything on her mouth but i have these mark on the shaft of my penis. they don't hurt or burn or anything but i heard you can have herpes and no symptoms. picture attached  thanks

I'm not sure there's a problem there, and it certainly doesn't look like herpes.  Oral sex is low risk anyway.

If you have any blisters any sores get to the doctor so he can or she can swab the area and test it for genital herpes I would also request and a thorough STD check to ease your mind good luck