Itching in genital area. To my body?

3-4 months back i started having itching problems in scrotum,groin and anus area like seriously annoying and irritating.After that phase, I started having small but many transparent bumps on my groin which i thought was jock itch but wasn't sure as i was embarrassed to consult with a doctor. After 2 weeks these bumps got vanished but still the groin skin was irritated (i used itch guard for itching ).So now my groin skin has a brown patch with irritated skin. One month later my scrotum started showing flaky skin and i felt burning sensation at that area soon i discovered that they were fordyce spots and they were in a large number. In these phase i even got affected by pearly penile papules in this phase. So now the problem still continues i.e itchy scrotum, ring worms on groin,little itching anus. I am not able to understand what kind of change made this to my body? Please help me with this problem, I am embarrassed with this problem and i cannot work properly.