My sister developed a small bump near her vaginal opening(it's on labia majora) after she fingered herself. It has been there since 14th june now. It's asymptomatic. No redness no discomfort or anything. It feels soft to touch. It's just there. It shrinks with warm compress and comes back after it. She also mentions she can feel it only when she sits in a squat position. (Not when her legs are flexed) . She has been taking sitz bath with betadine too(since 3 days) What is it? And when can she expect improvement? As it has been there for 15 days now.