Vaginal chaffing?

OK I need help I've tried a few things and it worked in the beginning but it's still bad. I work and am on my feet at least 5-6 hrs a day 5 days out the week. I used to be commando but then I have vaginal discharge and I started to chaff really bad, so I started wearing underwear, ive tried undies with pads but nothing works and the chaffing is still the same maybe even worse to the point I have blisters on the lips and sides. I was thinking of trying tampons for the discharge but idk. Any opinions?