I am currently experiencing the same symptoms! Did you ever find out what it was??
I have unprotected sex over 14 months ago, about 4 months or more ago I had one white pimple type bump on the shafts of my penis, within 2 months I have a few more and some pin prick type sensation, the bumps are hard small and white, and not really noticeable unless I am erect, they do not turn into open wounds or cuts, recently I was able to pop one and a hard white plug/ core/ root came out and left a tiny crater that has seemed to heal, once the core or plug is removed the tingling stopped, is this herpes? Or worse
have you had cold sores previously?
molluscum won't go away in a week on its own. typically it'll stick around for months minimum before it goes away.
since you still have new rashes, time to see the dermatologist again for further evaluation.
since you had unprotected sex, you can follow up with full std testing at the proper times. You can test for gonorrhea and chlamydia anytime after 1 week after the last time you had sex. syphilis after 6 weeks. herpes, hiv and hepatitis after 3 months.
we recommend that if your pants are off, a condom should be on to best protect yourself. It protects for hpv alone by 90% when you utilize barrier protection that way! follow up with proper testing at the proper times and in the future, only have protected contact to best protect yourself, save yourself worry and save yourself repeated testing :)
grace