I have a raised bump/sore on the surface of my labia majora. It is only ONE. And I have not had intercourse since the 1st of the month. The bump/sore is only irritated when I do a lot of walking, or sometimes when I urinate and some of the urine hits it. It is not irritated when I shower or just sit around. I have NO other symptoms. Just the annoying bump/sore. I have been with the same man for a year. Any ideas as to what it is? It typically goes away after a few days.