Hi Doctor, i'm a 35 year male, recently i had this tiny pimple like nodules on my penis shaft, tried popping it out, white puss like stuff (same like those on face pimple white stuff) came out but not much, plus some blood too, after a couple of days, it now developed into a boil under the skin, but i can feel its not attached to anything under the skin and only aches when i try to press or touch it. What could be the problem.