Usually this is a problem for babies, until you experience all the wonderful things the summer heat and humidity does to your skin. I am not talking about that sun kiss tan. No, I'm talking about the sweat collecting in the skin on skin areas of your body. Cleavage, armpits, thigh area, etc. When the skin is not able to dry properly, a itchy, bumpy, red rash occurs, that will drive you crazy. Using baby powder to prevent the problem from occurring helps. But if its too late, and your about to rip your skin off, try African Black soap. This is my go to product for itchy skin problems. African Black soap can be found online or at your local natural food store. It comes in bar form or my favorite, liquid with a mint scent. You'll experience relief on the first uses. Trust me when I say, you'll be thanking me later.
Just offering a little of my experience and knowledge.