I’ve been experiencing a spot on my arm that started when I was 4 months pregnant it’s swells then forms little white bubbles and leaves a dark scar, all the doctors I’ve seen were not able to detect what it was I’m hoping you could help it hasn’t popped up for 4 months (my son is now 5 months old) and I experience brown discharge everyday since I stopped hemorrhaging from childbirth. I am on the depo shot so my periods rarely ever come.