I need a little help my penis recently started itching since yesterday and I have been washing and drying properly, I don't wear tight clothes neither. about a week and a half ago me and my girlfriend had sex twice but at the time nuttin happen just mild irritation dryness on my penis. the head has little spots but that comes and goes.

the itch is killing me and I just finished washing it thoroughly when I woke up
the itchiness started yesterday so whats the best method of curing the itchiness and the little spots?