Chosen Solution
I washed
my phone with a baby wipe. it was already smashed at the back and a lil at the front. Later on , purple blotches began to show and is now getting worse. Anyway I could resolve this issue?
kelseydixon9 that sounds very much like a broken display assembly. Post some images of what your screen shows with your question. That way we can see what you see. Use this guide Adding images to an existing question for that. If it is, then the only way to repair it is be replacing the display assembly. Samsung Galaxy S7 Screen Replacement
You can go for a screen replacement and back replacement!