My iPhone's touchscreen doesn't work fine

Hello,

Follow these steps first:

1. Restart your iPhone or iPad.
2. Make sure that your screen is clean and free of any debris or water.
3. Disconnect any Lightning or USB-C accessories. If your screen works after removing an accessory, try using a different outlet, cable, or charger.
4. Remove any cases or screen protectors.

If those steps didn’t fix the problem:

Contact Apple Support as this is most likely a software or hardware issue

Hope this helps!