I met dermatologist and he confirmed it's exzima(I am sure it's not exzim), i showed doctor all the pictures but not below one, i don't have this during my appointment with the doctor
http://www.medhelp.org/user_photos/show/466587
It's some kind of dry flaky skin on pennis.. i am sure it's not exzima, can you try to identify what kind of bug is this ??