I went to the doctor 6 months ago, questioning him about if i had an std after receiving oral sex. He sed no and the only stds cathcable from oral sex are herpes. Everytime after i masterbate i will occasionally get red dots on the head of my penis, which are really small and microscopic. recently i had oral sex with my partner, and soon after i had these little red dots on the head of my penis. It does not hurt when urinating nor do i have painful ejaculation and am very confused what this is. This has been ongoing for a while now, please assist me in determining wat it is.