I've recently noticed that there were white bumps under my urethra, almost forming what felt like extremely dry skin or a rash. There was also one red bump on the side that went from irritated to just plain itchy and uncomfortable. I haven't had sex, no discharge from my penis, and I don't feel any burning when urinating. The only explanation I could think of was my penis touching a toilet seat, the area which is affected was what touched the toilet seat. The bumps are on the bottom, right under my urethra. After itching them, it starts burning for a few seconds. It's extremely itchy and uncomfortable. 

Any thoughts? What should I do?

Thanks. :-)