i am an indian,name Robin,i have phimosis from the past 2 years,during last winter my penis foreskin got very dry at the top area(phimosis affected area) and developed many cracks and broken skin.But when new skin grew after the breakage,it had a change of color,the new skin appears very fair infact white,while the rest of the foreskin remans intact,is this a disease or anything to be worried of?please reply immediately.