Touch screen went unresponsive after music Android app installation on Sony Xperia S

I have done a music Android app installation on my Sony Xperia S recently. Maybe because of that the touch screen functionality of the device failed. What is the best suggested solution for fixing this issue?

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Hi,
The touch screen of the device has failed due to the reason because the application that you have installed might not be from "Play Store" and it is some what unofficial 3rd party application and due to which there is a bug in the application and which is causing the issue. Download and install the application from "Play Store" and see that if you still have a problem with the device, if the problem persists then contact the developer from "Play Store" and enlighten him with the same. Also you can try to clear the data and cache of the application which will be present in "Settings->Applications->Downloaded" there you will be able to delete the data and cache and then again restart the device.
Hope this Helps.