OMG DOES ANYONE HAVE A ANSWER TO WHY THIS WONT STOP?

I am 23 weeks pregnant, around 14 weeks the same thing happened to me. It's actually a yeast infection in the arm pit. Keep the area dry, use anti-fungal cream, and it should go away within a week. I thought I was the only one who this happened to. Glad to know I'm not. However, mine started off as just itchy, but then they got really red, crusty, and sore. So I'd take care of it as soon as possible.