How do I stop this???

I promise this is not shit stains or piss stains. I think I am just getting too wet all the time and sweating. I clean my underwear and change them daily. I also clean my area daily really well with a wash cloth. I don’t want to have to constantly wear a pad or pantie liner because they rub me till I have a rash. Is there anyway I can make this stop?? The dark stain in the middle is from when I accidentally bleed through my pad onto the panties so just ignore that stain, I can’t get it out. Any advice on stain removal as well???