I've had an intensely itchy, slightly red/swollen spot about the size of a dime on the fold between my labia minora and labia majora for the past several years. I'm not sexually active, so I know it's not an STD. I also don't use any vaginal deodorants or anything of the like that could be causing an allergic reaction. I thought that it could be my laundry detergent, but I've changed my detergent several times over the past few years to no avail. What is this painfully itchy nuisance and how can I get rid of it? Thanks!