Suggest Remedies For Foul Odor And White Discharge Through Vagina

Hello.
For a while I've been experiencing problems with my vagina.
It has a foul odor, excretes a white discharge, and whenever I wipe it after urinating I see something that looks like rolled up dirt on the toilet roll.
I have eczema which causes me to see the same rolled up dirt on my neck and inner thighs, but it just recently started to appear on my vagina. I am not sexually active, so there's no way it's an STD. I need help!