I have had an itchy vulva for a while.  Recently, I thought i got a bump on my labia.  One night it swelled really a lot and when I woke up the next morning it was very swollen.  It has since gone down but it is still uncomfortable when I sit in the wrong position.   I got a mirror and looked at the area and saw three bumps on my labia, really close to my vaginal opening.  I have not been sexually active in over ten years.    What could this be?  I had been using a feminine hygiene vaginal wash, and got several bumps from using the normal type so I switched to the  hypoallergenic,  but i started itching again and stopped using it and only use soap and water now.