How Can An Itchy Vaginal Rash With A Vulva Lump Be Treated?

I have a itchy rash between my legs. It is on the outside of my vagina. The skin is peeling off dry flaky skin. The vulva has an itchy bump and I have small bumps from an allergic reaction to KY jelly an ingredient call propeg glycol. Not spell right. What can I use to treat it?