>>2580224Lose weight.
Your body parts are not supposed to rub together when you walk. You shouldn't need lube or talc other artificial creams and chemicals in order to do the most basic action of any animal - locomotion.
I know it's hard to believe because almost everyone in America is overweight, even people who think they are not. I frequently see Americans describe themselves as skinny when they are literally overweight, they're just comparing themselves to the obese people around them and they are thinner than most people.
Seriously, lose weight. Being a normal healthy body weight is fantastic and means you can do so much more. You will be healthier, live longer, and find walking, climbing and all physical activity significantly easier and more enjoyable.