Get confused with discolouration

I did the search on discolouration, and I get confused how to deal with it.
Some people heal with heat (water/heat-pad), some people say heat causes discolouration. Which one is correct?
And I read somewhere in this forum that wrapping can help healing discolouration, but I can’t figure out how much stress of wrapping.

Please note the discolouration I have is a darker unit since starting PE.

Shedding the Snake: Peeling to Remove Discoloration

Meiya777,heat is your friend.I’ve never heard of heat causine discoloration.Make sure you heat your unit well before your routine,and again after is also a good idea.I do a variety of exercises each workout,and I heat between all these as well.Don’t be afraid to heat that sucker.Just don’t get carried away and burn yourself.

Thanks for your advice.
Regarding the heat causing discoloration, I get this from the reply of my thread from Godofdeviltry:
The picture of injury

"Discolouration, IMO usually mean penis becoming darker due to jelqing, heat, hanging or clamping"

Am newbie, so I get confused

First I’ve ever heard of heat causing discoloration. Chainz is right, heat is your friend when it comes to discoloration.