Help! I Am Having Problems With a Dried Out Penis?

Let me start out by saying that I was only on Accutane for a period of one month. My penis is really dry and it has been this way for months. Usually when I urinate, it burns, and afterwards the urine dries out the skin on the part of the penis it has touched. When I take a shower, no matter the temperature of the water, my penis gets red and becomes really dry. Also, when I masturbate it becomes really tender & red and sometimes part of the skin will come off. I have noticed that the urethra is always tender. I have tried using moisturizers and emu oil, but it just causes the skin to get dry and start to flake & peel. I don't know what to do, and my urologist thinks everything is normal. Should i stop masturbating and stop taking showers to avoild liquid touching the skin? What can I do to get rid of this? Your help is really appreciated! Thanks!