my (penis) frenulum has a bump on it. I had intercourse with my wife and i recall not using any lube. Come to find out my skin was slightly scraped. I did not have any intercourse for sometime then all of a sudden this bump appears on my frenulum. I can have intercourse in certain positions and in some i cant. The bump causes a great deal of discomfort. when haveing inter course. What do you think i should do? is there any cream i can apply.