PLEASE answer

I always have to wear panty liners. A always. If I don't, I will get a rash. With any underwear that I wear. I've tried to train myself to not have to wear one, or to be able to wear cute underwear, but I can't. The seam of my pants I can feel through my underwear, and it rubbing on my vagina hurts and will make it red and give me a rash. It also doesn't help that I tend to get very very wet throughout the day, and that just makes it so that I can feel my pants through my underwear even more. Does anyone else have this problem? Is there anything I can do? I feel tremendously un-sexy...