Share your experience!
I am user of Xperia zr for the past 3 days my screen is not properly responding. My phone is not damaged by any way. Suddenly automatically screen is being touched. Upper part of the screen is being touched automatically.
You have 2 options
either get it inspected and repaired by your Local support
or
you could assume that the issue is the digitizer and you could replace the LCD + Digitizer and see if that solves the issue.