My vagina is red and a little swollen.the problem is not the lips of my vagina it is below it or at the bottom. It hurts to touch it and kinda burns. It is also itchy. I am on my period and I don't know if it's because I left my tampon in to long or what! I am very worried and don't know what to do. Please if you know what this is or you have had this before please tell me!