shaving down there???

I'm a swimmer so i have to shave a lot anyways but whenever i do i get red bumps all the time and i get really bad chafe burns from my swim suits and my underwear. i've tried so many different things to help but nothing seems to work. any suggestions that work for you guys???? i also wanna go farther w my bf but i'm nervous because i don't wanna shave and have it be all bumpy when his face is down there. pls help!!💕💕