the skin on the bottom of my penis close to my balls peels off when i rub it
So, we need to do a bit of detective work to see what is going on. Most issues like this are caused by something you are not intentionally doing, but have this outcome.
So to rule-out other possibilities, do you have skin conditions elsewhere on your body? If not …
Do you shower everyday AND ensure you are completely dry in your entire crotch region?
Are you an active person at all: perhaps you ‘work up a sweat’ by doing something like walking briskly early morning, such as on your way to work, or wherever? Perhaps you do regular sports, or visit the gym regularly, ride a bike - that kind of thing?
Some people hate the idea of feeling the cold and wear too many clothes causing a build-up of sweat? Perhaps the environment you are in during the day you are too warm, and again, this could be creating a sweat problem.
It is these kinds of things I would be looking at as to what you have going on?!
While you may have a skin condition going on what you need to rule-out is that something is occurring in your daily practices to cause this.
Essentially, what you most likely have is dampness occurring in your crotch area and that this is causing the skin issue …