Any changes to the vulvar area should be checked out by your doctor. Most of the time it is nothing serious, but the sooner you have it looked at the better it will be for you. I had a little cyst like pimple that I ignored for almost a year, thinking it was nothing and it was cancer, which is very rare, but I have learned that many conditions of the vulva can progress into other serious problems...not necessarily cancer, but problems just the same. Please do not wait, call tomorrow, it will put your mind at ease.All women should check their vulvar area monthly, just as they do for the breast, it is important!
Hope you are doing o.k., please post to let us know you are o.k.