I'm noticing this thin white layer around my vagina that sometimes curdles up into a creamy texture. It's been itchy at certain times during the day, specifically on one of the labia minora where it looks like there's some extra skin development with tiny eruptions, and there's white stuff inside. There's no burning sensation, bad smell, or discharge though. It's been like this for 3 days with no changes. What could this be? Should I be worried?