Penis sores on my shaft, 10-15 single pimples that have formed on my shaft and then break in the center to form a small crater, red in the center then scab over. They are painful to rub up against, duration is less than one week. all seem to be broken now. Had unprotected oral sex with four different women, latex condom vaginal sex with one of them and lots of sex with my wife the week before last. Wife has no symptoms, I traditionally develop very dry penis after a week of a lot of sex and one time did develop a yeast infection from my wife after a weeks vacation two years ago. This is different. I was taking Cialis for the week and I am latex sensitive, hands break out get very dry. They look like individual pimples that break in the center causing a sore crater that scabs over. Concerned