Originally Posted by
O_O
I had something similar a few years back. The meatus (I think it's called) of my urethra became swollen and sore and my vestibule was quite sore too.
My doctor didn't know what it was so referred me to a consultant. They took a biopsy but found nothing abnormal and gave me some steroid cream.
At first the cream didn't work so I was told to double the dosage and then it finally started going away. I think the other thing that actually might have helped even more was switching my soap. I changed to a totally pure, unscented, uncoloured soap.
I had it for at least four months but eventually it totally cleared up.
Cancerous lumps tend to be hard and not painful. Yours sounds much more like an infection or inflammatory reaction to something, like mine was.