The white stuff is called smegma and it is a normal build-up of dead cells and urine under the foreskin. Make sure to pull your skin all the way back while urinating, and while in the shower. Personal cleanliness is important in reducing smegma.
Hi Junior, its a simple UTI, we all get them at some time, just get down to you doctor for some antibiotics, or you could try some cranberry juice 3 times a day for 7 days, the choice is yours.
Good Luck