Dr., for a long time now the underside of my penis has been very smooth and the skin is thin and gets irritated(it's even worse when I play sports because it gets really sweaty). I think it may have been normal, but then somehow it got worn down, I don't think it was from masterbation either. I put things on it like vitamin c, nizoral cream, and vasalein but nothing helps to rejuvenate the skin back to normal. I really don't want to go to the dermatologist for this so if you could tell me if this is healable or not and what to do I would greatly appreciate. Thanks.