How To Treat Roughness In Foreskin Of Penis?

Respected Sir,Warm Greetings !! I’m 26, Male, Single(never involved in Sex) from Andhra Pradesh(earlier worked in Chennai), India. I’m a freelance web designer spending much time online. Respected Sir, I’ve seen some roughness on foreskin of my penis in last 3 days. I’m worried about how it came. Sir, another thing is below(under side) of the penis skin colour is changed. I’m not having any itch or pain on my penis / or on any other part of my skin. Sir, basically my body will be with much heat and I use to drink more water. Sir, please kindly help me in this problem with your valuable online prescription. Awaiting for your email,Many Thanks &Kind Regards, Raj