about 7 months ago I developped a wierd rash on the lips of my genitals, it's basically just white bumps covering the intire lips. I've gone to my teen help center but none of the doctors could figure out what it is, they told me it could be a yeast infection, so I took caneston, but it didn't help. It's normally only painfull during my menstruations, the lips get red and inflammed, all other times it's quite itchy. I am not sexually active. please help.