Fix for unresponsive iphone 4s screen?

The right side of my iphone screen won't respond to touch. It still displays everything fine, it just won't recognize when i try to touch it. Has anyone heard of a similar issue or knows a fix?

I tried restarting it.

Will a restore fix it? (i would rather avoid this option if possible to keep from losing my stuff)

would replacing the screen fix it if it proves to be a hardware issue?

ps. My warranty is long gone… And i would like to solve it myself if at all possible instead of spending 83947283497234$ to fix it

Try a restore.
if it doesn't work email me i have a few iphone for trade or sale.