My iphone has water damage. Its turns on just fine but it doesn't detect my finger?

My iphone has water damage. Its turns on just fine but it doesn't detect my finger?

Added (1). i've tried the rice method and it only removed the water. Is there anything else i can try before buying a new iphone?

Short of replacing the display, there really isn't anything you can do about it. Water damage almost always kills or disables phones and other electronics. The rice method doesn't really work.