My penis looks horrible, has cracks and bubble looking spots

I am going to get to the point now. So my penis has cracks all over the tip and they get even worse when I am hard. I also have little bubbles on the tip as well. So yeah that is about everything, so if you can reply and tell me what to do that would be cool. Here is a few images.

consult a urologist.

Are you able to display it while erect?

How long have you noticed this?