im worried that i might have an STD. A few days ago i got this rash on the lower part of my penis. It turned into a scab and then the scab came off but its red where the scab was. Yesterday i got a red bump, smaller than the scab i had and is still there. Today ive been getting more smaller ones (i counted 4). they are hard to see in regluar light but under alot of light they become more visible. i havent experienced any pain or itching just the visible bump. any idea what it is?

P.S. the last time i had sexual intercorse was a little over 2 weeks ago

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Male