I had unprotected sexual intercorse a while back and I have been getting small red pimple like bumps around my bikini area/groin, pubic area and thighs sometimes even on my buttcheeks. They itch a little and if I itch too much the white head rips off and they scab over. They burn when touched. I got one in my armpit as well and on my shins and calves where I shave. I'm an athlete and I work out a lot, could this be an std or from blocked pores from sweating? Please help!!